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IOCs

Agent Tesla is spyware that collects information about the actions of its victims by recording keystrokes and user interactions. It is falsely marketed as a legitimate software on the dedicated website where this malware is sold.

Trojan
Type
Likely Turkey
Origin
1 January, 2014
First seen
28 February, 2024
Last seen

How to analyze Agent Tesla with ANY.RUN

Type
Likely Turkey
Origin
1 January, 2014
First seen
28 February, 2024
Last seen

IOCs

IP addresses
66.29.151.236
198.23.221.13
76.74.235.200
92.38.178.11
Hashes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mail.melanopharma.com
smtp.epressong.com
cp8nl.hyperhost.ua
sslout.de
mail.paksafety-sa.com
mail.clslk.com
cp5ua.hyperhost.ua
mail.unitech-co.com.tr
mail.itresinc.com
mail.atec.com.tr
smtp.godforeu.com
mail.jvpgclub.com
mail.wasstech.com
mail.dmsinnovative.ro
mail.commtechtrading.com
mail.sdlbd.net
mail.wassadadvogados.com.br
mail.mbarieservicesltd.com
mail.ssipae.com
mail.sencan.com.tr
URLs
ftp://ftp.acc-engineering.xyz/
https://api.telegram.org/bot5268976687:AAFVn0p7E2gEOnhpsNJOFeUNsuaE1sW24jE/
ftp://ftp.lemendoza.com/
https://api.telegram.org/bot5843567515:AAEdtJWwcJKNn64U81CKVdG-li_Ejds8raM/
https://api.telegram.org/bot6568247464:AAHsSOES5pRueRqAlbG1bx5hx02y4of2d_Q/
ftp://ftp.onelovehk.com.ng/
ftp://ftp.corpsa.net/
ftp://ftp.svetigeorgije.co.rs/
https://www.ronaldsmith.loan//inc/4e7ada8f7b87bc.php
https://api.telegram.org/bot5304537825:AAFt7BhY9MUlq_s5TsQbIJu1GotM2jL0xGU/
https://fiores.cl/mail/obrah/inc/dea039b70b5e63.php
https://www.glamourstorepa.com.br/sus2/inc/f858786f876bb9.php
https://www.glamourstorepa.com.br/mail/inc/39dc6fa01a6534.php
ftp://ftp.mgcpakistan.com/
https://api.telegram.org/bot5556229164:AAG06WuQ2Ibcy5ZKb4lTSDlmionK0lTPWiM/
ftp://ftp.hitplas.ro/
http://91.92.250.136/harmless/inc/2c6d40d7cc1ad3.php
http://91.92.250.136/uploads/Nhknnocqwz.wav
ftp://ftp.elquijotebanquetes.com/
ftp://ftp.siscop.com.co/
Last Seen at

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What is Agent Tesla malware?

Agent Tesla is a password stealer spyware that has been around since 2014. The malware can be used by attackers to spy on victims, allowing them to see everything that has been typed in supported programs and web-browsers.

Being marketed and sold on its own website, which falsely claims that the program is a legitimate keylogger created for personal use, the Agent Tesla virus has become extremely popular in the hacker community. Not lastly due to its ease of use and tech support, available on the “official” website where this malware is being sold by the attackers, as well as on the dedicated Discord server. Despite claiming the legitimacy of the software, support staff gives advice on utilizing the virus illegally. It is thought that Agent Tesla spyware has originated in Turkey.

General description of Agent Tesla

The spyware is created using .Net software framework. It is aimed at stealing personal data and transmitting it back to the C2 server. The malware is able to access information from web browsers, email clients, and FTP servers.

In addition, Agent Tesla malware can capture screenshots and videos. It can also record clipboard information and form values. The virus was being distributed on agenttesla-dot-com where attackers could purchase it for as little as 15$. However, depending on the requested options the package price could easily reach roughly 70$.

Uniquely, creators of the malware have set up a sort of an ecosystem around the program, providing 24/7 customer support as well as pre-matched purchase plans that include various options tailored for different budgets and goals. The virus is supplied with a dedicated builder that has a simple-to-use control panel. It allows even a non-technically savvy attacker to pack the payload into a malicious document. What’s more, after 2015 the control panel of Agent Tesla has been expanded with extensive automation functionality, allowing the attacker to automatically capture snapshots or remotely activate the webcam on a victim’s PC in set intervals.

Based on the analysis, the malware comes equipped with multiple persistence mechanisms that help it avoid antivirus detection. As such, it can resume operation automatically after a system reboot. It is also able to turn off Windows processes to stay hidden.

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Malware analysis of Agent Tesla

The interactivity of ANY.RUN service allows tracking activities in real-time and watching Agent Tesla in action in a controlled, safe environment with full real-time access to the sandbox simulation. A video recorded by the ANY.RUN gives us the ability to take a closer look at the lifecycle of this virus. You can also analyze fresh samples and IOCs in our threat intelligence feed in the public submissions.

agent tesla execution process graph Figure 1: A lifecycle graph generated by ANY.RUN

How to avoid infection by Agent Tesla?

Agent Tesla malware is not an easy one to identify. The most robust way to stay safe is to exhibit caution when opening suspicious emails or visiting unknown links. Above all, one must be careful to download attachments in emails from unknown senders and try to identify scams.

Distribution of Agent Tesla

The malware is distributed at large via spam email campaigns like Vidar or IcedID. It is usually delivered to victims in malicious documents, or via malicious web links. Upon visiting such a link, a contaminated document will be automatically downloaded to a victim’s PC.

If opened, the document will trigger the download of the actual virus. The spyware saves itself in the “%temp%” folder and then automatically executes. Email campaigns usually target individuals working in different industries. Topics of malicious emails can be extremely diverse.

Agent Tesla execution process

Agent Tesla keylogger is mostly spread via Microsoft Word documents that contain an embedded executed file or exploit. Once clicked, an executable file is downloaded and renamed. The downloaded file runs itself and creates a child process which in turn can create another child process.

The malware is able to use Regsvcs and Regasm to proxy the code execution through a trusted Windows utility. The research and threat intelligence team can pay attention that in the given example RegSvcs.exe process is stealing personal data.

process tree of the agent tesla execution Figure 2: A process tree of the Agent Tesla execution

Since the main purpose of Agent Tesla RAT is stealing personal information you can identify it by behavioral activities. To do so, try the analysis of the indicators of a malicious process (most often it's an injected "RegAsm.exe"). If there is the indicator "Actions looks like stealing of personal data" in the "Process details" section you probably are dealing with the Agent Tesla trojan. Also, you can identify what information the malware has stolen by clicking on the indicator. You can navigate through by clicking right and left arrows in the appeared window.

How to get more Agent Tesla data using ANY.RUN?

Often Agenttesla packets encryption is unsuccessful and with ANY.RUN service's "Network Stream" analysts can take a look at what data this malware stole. To do it open the "Connections" tab in the lower part of the task's window and simply click on the connection which sent data. Not unusual that you can find inside this information even the attacker’s SMTP credential.

agent tesla's network stream without encryption Figure 2: Agent Tesla’s Network stream without encryption

Conclusion

According to threat intelligence reports, since its creation, Agent Tesla trojan has been used by over 6,300 customers. Unfortunately, the popularity of the virus is only continuing to rise. The upward trend is of, course, supported by the ease of use which allows even novice attackers to set up attacks.

A company-like service provided by the virus creators also plays a significant role. The danger of Agent Tesla for incident response and threat intelligence teams lies not only in the fact that it can be used by almost anybody but also in its ability to open doors to more destructive viruses. Thankfully, interactive analysis services such as ANY.RUN allows professionals to examine the malware behavior in detail and set up appropriate security responses.

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