Sunday, July 7, 2024

Telekopye: Chamber of Neanderthals’ secrets and techniques

We lately revealed a blogpost about Telekopye, a Telegram bot that helps cybercriminals rip-off individuals in on-line marketplaces. Telekopye can craft phishing web sites, emails, SMS messages, and extra.

Within the first half, we wrote about technical particulars of Telekopye and hinted at hierarchical construction of its operational teams. On this second half, we concentrate on what we have been capable of find out about Neanderthals, the scammers who function Telekopye, their inside onboarding course of, totally different methods of commerce that Neanderthals use, and extra.

Key factors of this blogpost:

  • How aspiring Neanderthals be a part of Telekopye teams.
  • Detailed view of the entire scamming operation from the Neanderthals’ perspective.
  • Evaluation of the rip-off situations and what every Neanderthal has to do as a way to achieve success.
  • The instruments utilized by senior Neanderthals.
  • Insights into methods that Neanderthals use to lure their victims.
  • Highlights from an interview with one of many Telekopye directors.

Overview

Lately, we revealed an evaluation of Telekopye; on this follow-up blogpost, we concentrate on the Neanderthals’ techniques and modus operandi. Our info comes from three most important sources:

  1. supply code of the bot itself,
  2. evaluation of Neanderthals’ conversations from scamming teams we’ve infiltrated, and
  3. our evaluation of Neanderthals’ inside documentation – a group of paperwork, graphs, footage, and extra – that they use as their very own private data base. Such info is offered to newcomers to help them with onboarding.

We’d additionally prefer to thank Flare, who helped us in our analysis.

Becoming a member of a gaggle

Telekopye teams recruit new Neanderthals through ads in many various channels, together with underground boards. These ads clearly state the aim: to rip-off on-line market customers, as seen in Determine 1.

Figure 1 Recruitment Telekopye scamming group
Determine 1. Recruitment for a Telekopye scamming group

Aspiring Neanderthals are required to fill out an software, answering primary questions like the place they realized concerning the group and what expertise they’ve on this line of “work”. If authorised by current group members with sufficiently excessive position, the brand new Neanderthals can begin utilizing Telekopye to its full extent. Moreover, each Neanderthal is required to hitch two channels: a gaggle chat the place Neanderthals talk and the place guidelines and manuals are saved, and a separate channel the place transaction logs are saved. The method is demonstrated in Determine 2.

Figure 2 Application accepted
Determine 2. Accepted software that permits a brand new Neanderthal to hitch group chat and transaction logs chat through hyperlinks within the message

Kinds of scams

There are three most important rip-off situations:

1. Vendor, internally known as 1.0.

2. Purchaser, internally known as 2.0.

3. Refund.

Determine 3 is the creation menu for the primary two rip-off situations, the place column 1 on the backside represents Vendor scams (1.0). The Refund rip-off situation is then tied to every rip-off situation individually. These rip-off varieties are described within the following subsections.

Figure 3 Example of creation menu
Determine 3. Instance of creation menu for various rip-off situations

Vendor rip-off

On this situation, Neanderthals pose as sellers and attempt to lure unsuspecting Mammoths into shopping for some non-existent merchandise. When a Mammoth reveals curiosity within the merchandise, the Neanderthal persuades the Mammoth to pay on-line quite than in individual. If the Mammoth agrees, the Neanderthal gives a hyperlink to a phishing web site offered by Telekopye and punctiliously crafted to resemble the cost web page of the authentic on-line market itemizing the reputed merchandise. Not like the authentic net web page although, this web page asks for a web based banking login, bank card particulars (generally together with stability), or different delicate info. If the Mammoth enters this information, the phishing web site robotically steals it. Curiously, this information doesn’t turn out to be out there to the Neanderthal providing the merchandise on the market, however is processed by different Neanderthals. Determine 4 reveals the Telekopye menu with already created phishing hyperlinks and Determine 5 demonstrates the communication throughout this rip-off situation.

Figure 4 Example of phishing links
Determine 4. Instance of phishing hyperlinks created by Telekopye for the Vendor rip-off situation
Figure 5 Fabricated example
Determine 5. Fabricated instance of dialog for the Vendor rip-off situation

Purchaser rip-off

On this situation, Neanderthals pose as consumers and so they analysis a Mammoth to focus on. They present curiosity within the merchandise a Mammoth is promoting and declare they already paid through the offering platform. The Neanderthals proceed to ship the Mammoths electronic mail or SMS messages (created through Telekopye) with a hyperlink to a fastidiously crafted phishing web site (additionally created through Telekopye; see Determine 6), claiming the Mammoth must click on this hyperlink as a way to obtain their cash from the platform. The remainder of the situation is similar to the Vendor rip-off with slight variations throughout dialog (depicted in Determine 7).

Figure 6 Example of Buyer scam scenario
Determine 6. Instance of the Purchaser rip-off situation phishing web site
Figure 7 Example of conversation for Buyer scam scenario
Determine 7. Instance of dialog for the Purchaser rip-off situation

Refund rip-off

On this situation, Neanderthals create a state of affairs the place the Mammoth is anticipating a refund after which sends them a phishing electronic mail with a hyperlink to the phishing web site, as soon as extra serving the identical goal. Neanderthals both ship such emails to Mammoths they didn’t contact earlier, relying on them getting grasping and attempting to get this “refund” or they mix it with the Vendor rip-off situation – when Mammoths complain that they didn’t obtain their items, Neanderthals ship them refund phishing emails in an try to rip-off them for a second time.

Modus operandi

Now that we now have described the totally different rip-off situations, let’s have a look at what data the Neanderthals have gathered all through the years of their operation. Their inside documentation consists of photos, graphs, brief guides, and even advanced paperwork – the desk of contents of 1 such doc is illustrated in Determine 8.

Figure 8 Table of contents
Determine 8. Desk of contents from onboarding supplies (translated from Russian)

We additionally found that there are two sorts of Neanderthals. The primary sort writes to each attainable Mammoth and the opposite one is far pickier with regards to searching for a possible Mammoth. There’s a little bit of rivalry between them because the extra cautious sort argues that the “reckless” conduct of the much less cautious scammers may convey a bit extra revenue, nevertheless it creates rather more public consciousness.

Preparation

Getting ready for a rip-off differs primarily based on the chosen situation. For the Vendor rip-off situation, Neanderthals are suggested to arrange extra images of the merchandise to be prepared if Mammoths ask for extra particulars. If Neanderthals are utilizing footage they downloaded on-line, they’re speculated to edit them to make picture search harder.

For the Purchaser rip-off situation, the important thing a part of a Neanderthal’s preparation is how they select the Mammoth. Over time, Neanderthals have created tips to observe when selecting their targets – they contemplate gender, age, expertise in on-line marketplaces, score, critiques, variety of accomplished trades, and lots of extra indicators.

Market analysis

In virtually each group of Neanderthals, we will discover references to manuals with on-line market analysis from which Neanderthals draw their methods and conclusions. The supply of this analysis is normally a research from 2017 by Avito and Information Perception company. Determine 9 illustrates the outcomes of 1 such analysis, depicting graphs of gender, age, expertise, and revenue distribution on a particular on-line market.

Figure 9 Neanderthals’ analysis of typical buyer
Determine 9. Neanderthals’ evaluation of a typical purchaser (translated from Russian)

Through the Purchaser rip-off situation, Neanderthals select their targets primarily based on the kind of gadgets they’re promoting. As an example, some teams keep away from electronics utterly. However, cell gadgets are a valued class for different teams. The worth of the merchandise can also be vital – if too excessive, then Neanderthals won’t goal such Mammoths, as they consider that the Mammoths’ vigilance might be a lot increased by default. Manuals suggest that Neanderthals, within the Purchaser rip-off situation, choose gadgets with a value between 1,000 to 30,000 rubles (€9.50 to €290 as of 20th October, 2023).

The placement of the Mammoth can also be vital. Neanderthals focus extra on richer cities the place they anticipate extra listings and folks not holding such an in depth eye on their very own funds.

Lastly, the scammers take the day of the month into consideration too. They goal at days proper after individuals obtain their paychecks, as they naturally anticipate they will have extra money of their financial institution accounts.

Net scraping

Neanderthals make the most of net scrapers to rapidly go although many on-line market listings and choose an ideal Mammoth who will fall for the rip-off; that is, as we now have already written, a vital preliminary a part of the Purchaser rip-off situation.

We’re not conscious of customized net scrapers carried out by Neanderthals, however their documentation mentions just a few supplied as authentic providers. Neanderthals scrape the focused market for listings, particulars of things, and person info, which leads to a CSV or XML file. Neanderthals then use the outcomes to rapidly discover the best targets. We offer an instance of such a file in Determine 10.

Figure 10 Parsed info from Avito website
Determine 10. Parsed data from Avito web site within the class “cellphones” (translated from Russian)

Consumer scores and expertise are of specific curiosity to Neanderthals, as they use this info to keep away from targets that they deem more likely to spot the rip-off.

Avoiding in-person supply

For security causes, many Mammoths favor each in-person cost and in-person supply for offered items. That poses a difficulty for Neanderthals as they should persuade Mammoths to agree to make use of a supply service and on-line cost, in order that they will direct them to the phishing web site. Normally, they declare they’re too distant or that they’re leaving town for a enterprise journey for just a few days. On the similar time, they attempt to look very within the merchandise to extend the possibilities that the Mammoth will comply with their suggestion.

Phishing net web page hyperlink supply

Many authentic on-line marketplaces have an built-in chat characteristic and, alongside, moderation in place. Sending somebody a hyperlink by way of such a chat is normally a pink flag and will very nicely lead to a ban. Neanderthals attempt to overcome this impediment by persuading Mammoths to proceed their dialog on a special chat platform that has much less monitoring.

Their arguments are similar to these in opposition to in-person supply. They declare that they should depart their residence and can’t entry the chat from their cell phone, however are capable of proceed their speak on one of many chat apps.

By their very own statistics, Neanderthals declare that about 50% of Mammoths will comply with a platform change and 20% of these will fall for the rip-off. This leads to a ten% success fee general.

One other favored technique of supply is utilizing electronic mail or SMS. Telekopye is ready to rapidly generate convincing phishing messages. Neanderthals use methods (a few of them illustrated in Determine 11) to study Mammoths’ electronic mail addresses or cellphone numbers as a way to ship them such messages. The benefit of this method is that asking for a cellphone quantity or electronic mail deal with will probably not set off any pink flags for neither Mammoth nor chatting platform and the Neanderthal doesn’t want to steer the Mammoth to switch to a special chat platform.

Figure 11 Copy-n-paste text example
Determine 11. Copy-and-paste textual content instance (translated from Russian)

Communication

No AI is utilized by Telekopye. This can be stunning, however Neanderthals consider that their method is superior and fewer more likely to be noticed by monitoring mechanisms. In consequence, the huge portion of their inside documentation is targeted on communication methods to realize the very best outcomes.

Incomes the Mammoth’s belief is essential to the success of a rip-off. Neanderthals typically deliberately don’t instantly reply to each message however wait (generally even just a few hours) to create the phantasm that they’re busy with common on a regular basis life. Talking of time: they attempt to adapt to the Mammoth’s time zone so as to not increase suspicion.

They typically interact in chitchat first; they might even share a pretend private story. The entire goal is to search for pink flags – indicators that will inform the Neanderthal that the Mammoth is just too suspicious or skilled. Since Neanderthals are targeted on revenue, they don’t wish to spend time on Mammoths who find yourself recognizing the entice.

One other nice instance is that when Neanderthals make the most of the Purchaser rip-off situation, they guarantee Mammoths that they’ve already paid for the merchandise. This, mixed with the design of the phishing electronic mail that guarantees fast cash retrieval, leads to Mammoths being much less vigilant.

Skilled Neanderthals present newcomers with full conversations to take inspiration in; one such instance is offered in Determine 12.

Figure 12 Suggested conversation with Mammoth
Determine 12. Recommended dialog with a Mammoth (translated from Russian)

Neanderthals solely tolerate a sure degree of resistance from Mammoths – in the event that they deem the rip-off just isn’t more likely to succeed, they transfer to a special goal. Nonetheless, in the event that they really feel like they’ve virtually received, they’re very persuasive. An ideal instance is their documented method to conditions the place they efficiently harvest the Mammoth’s delicate information, however both the financial institution blocks the transaction or there are inadequate funds. In that case, Neanderthals could go so far as asking the Mammoth to make use of a member of the family’s card and even name their financial institution and authorize the switch themselves.

Neanderthals are able to reply many sudden questions concerning the legitimacy of their requests (see Determine 13).

Figure 13 Suggested way to scam
Determine 13. Recommended option to rip-off extra perceptive Mammoths (translated from Russian)

Translation

As this operation targets Mammoths internationally, Neanderthals have to create the phantasm that they converse the Mammoth’s language nicely sufficient. It’s fairly widespread to come across Russian-speaking Neanderthals who can write in English. Curiously, we have been capable of cross-reference the Telegram nicknames of many Neanderthals with language-learning platform profiles. These accounts normally said that the proprietor speaks Russian and English. Clearly, the connection could be coincidental.

For a few years Neanderthals used Google Translate. Since no less than 2021, Neanderthals moved in the direction of different translators, similar to DeepL, as (of their opinion) it understands context higher.

Apart from utilizing translators, they’ve created many translation tables through the years, with verified translations of widespread phrases into a number of languages. These translations are mostly from Russian to European languages (see Determine 14). Neanderthals simply copy and paste these translated sentences into the chat with the Mammoth.

Figure 14 Romanian-Russian and Portuguese-Russian
Determine 14. Instance of Portuguese-Russian and Romanian-Russian translation tables

Group particular options

We also needs to point out that totally different teams have totally different quality-of-life enhancements to Telekopye. For instance, when producing a phishing hyperlink (a consequence could be seen in Determine 15), Neanderthals from certainly one of these teams are requested a number of questions that allow them to have sure diploma of customization of every phishing web site. Essentially the most attention-grabbing is the query about guide/automated phishing website technology. Within the case of guide technology, the Neanderthal should specify all info wanted to create the phishing web site. For Neanderthals posing as consumers, this takes from 10 to fifteen questions (Determine 16).

Figure 15 Example of phishing website creation process
Determine 15. Instance of automated phishing web site creation course of by Telekopye, the place Neanderthal poses as a purchaser
Figure 16 Manual of phishing link creation process
Determine 16. Handbook phishing hyperlink creation course of

Within the case of automated web page technology, the Neanderthal solely must specify the URL of the merchandise to “purchase” and to reply 5 questions (like what the client’s title and cellphone quantity are). Telekopye then scrapes all info from the web site and creates the phishing web site.

Anonymity and evasion

Neanderthals consider their teams are filled with “rats” (for instance, legislation enforcement or researchers). So, they religiously stick with the principles, primarily no probing for info that might establish different members of the group. Breaking such guidelines could very nicely lead to being banned. The golden rule is “work extra speak much less”. As well as, they’re inspired to make use of VPNs, proxies, and TOR to remain protected. Neanderthals present newcomers with intensive guides and even interact in heated discussions over what applications or providers to make use of and why, together with browser preferences. Some Neanderthals even make the most of Orbot, a TOR variant for Android.

Cash

Neanderthals want to cover not solely their identities and site, but in addition their cash. Naturally, cryptocurrencies are the reply to that. We weren’t ready to attract any conclusions concerning cryptocurrency choice.

Lastly, Neanderthals favor providers for which they will register utilizing solely a cell phone quantity. They contemplate this the very best method, since it’s comparatively simple to purchase a SIM card whereas not disclosing their id.

Bypassing automated detection

On-line market scams are nothing new. Over time, the platforms offering these providers have carried out a lot of methods to counter scammers and improve their clients’ safety. The Neanderthals are conscious of this and proceed to experiment with totally different approaches to beat the platforms’ moderation insurance policies. One early and quite silly try was to make the most of Google Types to phish private info from Mammoths (as seen in Determine 17). Contemplating the data they focused, the objective was to acquire a method to speak by way of a special channel – electronic mail or SMS – the place strict moderation wouldn’t happen.

Figure 17 Phishing with Google Forms
Determine 17. Instance of phishing with Google Types

 

These days, virtually all Neanderthals attempt to switch their Mammoths to much less policed, authentic chat platforms. Neanderthals select them as a result of they consider banning accounts there takes time. Moreover, sending numerous hyperlinks over chat platforms is widespread observe quite than suspicious conduct. As a bonus, virtually all people is accustomed to such purposes, so Neanderthals don’t have to clarify how they work.

Regardless of contemplating these platforms a lot safer, Neanderthals tread fastidiously nonetheless. They keep away from sending too many messages in a brief time period and attempt to personalize messages for various Mammoths – Telekopye aids them significantly on this effort.

Exploring new territories: Actual property rip-off

Among the Neanderthals’ teams point out a special type of rip-off situation – one which targets actual property renters. The rip-off works as follows. Through the preparation stage, Neanderthals write to a authentic proprietor of an house, pretending to have an interest and ask for numerous particulars, similar to extra footage and what sort of neighbors the house has. The Neanderthals then take all this info and create their very own itemizing on one other web site, providing the house for hire. They reduce the anticipated market value by about 20%. The remainder of the situation is equivalent to Vendor rip-off situation – the Neanderthal waits for a Mammoth to point out curiosity, and directs the Mammoth to pay a reservation payment through a hyperlink that, in fact, truly factors to a phishing web site.

Because of ESET’s telemetry we discovered that the phishing web sites used on this rip-off situation are suspiciously much like those Telekopye creates for the Purchaser and Vendor situations. This, mixed with the rip-off being marketed by Telekopye teams, leads us to consider that there’s a connection. Nonetheless, we neither infiltrated any group specializing on this situation nor obtained a Telekopye variant designed for it.

Interview

When crawling by way of totally different manuals, teams, and extra supplies, we discovered an interview with a Telekopye administrator that was performed on the finish of 2020. This helped us get a singular perception into the thoughts of a high-ranked Neanderthal. The interviewed Telekopye administrator operated a Telekopye group specializing in educating new Neanderthals.

The administrator is at one level requested how he sees the way forward for this line of “work”. To that, he responds that “On-line market scams will at all times be current. It’s a lot more durable [to scam] than it was once due to banning insurance policies on totally different websites. However it’s simply not attainable to cease all phishing on these websites”. He additionally says that he doesn’t rip-off anymore. He simply received uninterested in it and now works solely as administrator/tutor and that’s why his group is so distinctive. “I don’t worry Mammoths. Each different Mammoth will threaten you after they notice they’ve been scammed. Apparently, everybody lately is a spouse or a good friend of a minister of inside affairs”, says the administrator.

When requested whether or not he is considering creating a brand new rip-off challenge, he says that he doesn’t have time for that. He moderates two channels, has an lively life-style, does loads of coaching, and he has solely 4 hours a day at residence.

He additionally confesses that he’s absolutely conscious that this type of a job isn’t sincere however finds a typical excuse for himself. “… some individuals will continually pay for hyperlinks, and somebody will continually throw them. Whoever tries laborious in life will succeed.”. On prime of that he says that if he feels sorry for Mammoth, he asks himself: “Why am I scamming them within the first place? Nicely… I solely steal from the wealthy (analysis notice: Mammoths that most likely have no less than €200 of their account) and if my conscience have been that fragile, I’d go work as a supply man”.

Conclusion

On this second installment devoted to Telekopye, we now have targeted on what we realized about Neanderthals. Because of gaining access to each their inside communication and their data base, we now have offered not solely descriptions of various rip-off situations, however primarily a singular perception into their modus operandi and mindset.

We’ve got demonstrated how the admission course of for newcomers seems to be like and the way Telekopye aids Neanderthals of their each day work. As well as, we now have proven that they most likely are experimenting with actual property scams as nicely.

On-line market scams are probably not going away. As we demonstrated in the primary installment, we have been capable of uncover dozens of teams working Telekopye. That mentioned, by having our distinctive perception into the scammers’ operation, we consider lots could be realized as a way to shield customers of such platforms from hurt.

IoCs and a MITRE ATT&CK methods desk have been offered within the first a part of this evaluation, and are unchanged, so please confer with that article for these.

For any inquiries about our analysis revealed on WeLiveSecurity, please contact us at threatintel@eset.com.
ESET Analysis provides personal APT intelligence reviews and information feeds. For any inquiries about this service, go to the ESET Menace Intelligence web page.

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