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IOCs

Vidar is a dangerous malware that steals information and cryptocurrency from infected users. It derives its name from the ancient Scandinavian god of Vengeance. This stealer has been terrorizing the internet since 2018.

Trojan
Type
ex-USSR
Origin
1 December, 2018
First seen
10 July, 2024
Last seen

How to analyze Vidar with ANY.RUN

Type
ex-USSR
Origin
1 December, 2018
First seen
10 July, 2024
Last seen

IOCs

IP addresses
95.216.180.153
92.255.85.78
45.84.1.88
Hashes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http://prepepe.ac.ug/mozglue.dll
http://prepepe.ac.ug/freebl3.dll
http://prepepe.ac.ug/msvcp140.dll
http://prepepe.ac.ug/softokn3.dll
http://prepepe.ac.ug/nss3.dll
http://prepepe.ac.ug/sqlite3.dll
http://prepepe.ac.ug/vcruntime140.dll
http://pretorian.ac.ug/index.php
https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354
https://t.me/snsb82
https://steamcommunity.com/profiles/76561199677575543
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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http://panel.com/3.jpg
http://panel.com/1.jpg
http://panel.com/2.jpg
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What is Vidar malware?

Vidar is an information stealer trojan that was first identified in December 2018. It is either a fork of Arkei or the result of its evolution. Named after the god of vengeance from Scandinavian mythology, Vidar is used to steal information from infected systems, take screenshots, steal cryptocurrency, and more.

General description of Vidar malware

Vidar is presumed to have originated in a Russian-speaking country since the malware is configured to stop execution if it detects that it is being run on a machine that is located in one of the ex-USSR nations or on one that has a Russian keyboard layout.

Being another cyber threat that is available for purchase based on the MaaS ( Malware-as-a-Service ) business model, Vidar can be purchased on its “official” website for a hefty price tag of $700, at least for the PRO version. Though, a stripped-down version of the malware can be obtained for just $250.

According to the Vidar trojan analysis, malware is written in the C++ programming language. Purchasing account grants the attacker access to a control panel where the cybercriminal can set up the infostealer malware to target particular information on the victims’ PC. Like Arkei, cybercriminals need to take precautions to secure the main payload themselves, using crypto or a packer. The control panel displays the current builder version, user settings, malware status, and logs. It should be noted that Vidar data stealer uses domain names to search for C&C servers, where stolen data is being dropped, changing every four days. Though they are steadily changing, a constant response is required.

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Vidar is capable of stealing text files in multiple formats, browser cookies and history, browser records, including data from TOR, as well as autofill value information, including banking and credit card details. Based on the Vidar analysis, the stealer malware can search for cryptocurrency wallet information, take screenshots and act as a message stealer, recording private messages from various software.

What’s more, Vidar is also known to be able to steal digital coins from offline wallets. In fact, holders of Litecoin, Bitcoin, Ethereum, Zcash, and DashCore are in potential danger, as these are the cryptocurrencies currently supported by this infostealer malware.

After collecting all targeted information, this stealer malware archives it and sends the stolen data to a control server, after which Vidar removes traces of its work and deletes itself from the system.

Vidar analysis

A video recorded in ANY.RUN malware hunting service allows us to take a closer look at the lifecycle of Vidar and perform Vidar analysis by themselves.

arkei execution process tree

Figure 1: A visual process graph generated by ANY.RUN

text report of the arkei malware analysis

Figure 2: The customizable text report provided by ANY.RUN is a perfect tool to share the results of an analysis

Vidar execution process

According to the Vidar analysis, after the user downloads and runs a malicious file, it spawns a child process and collects information from the infected system. Often, after the information was collected, the malware kills and deletes itself from the system through a command-line command.

How to avoid infection by Vidar malware?

When spread via spam email campaigns like NanoCore or Agent Tesla, the Vidar stealer requires the user to download and run a malicious file to enter an active state and begin execution. Therefore, following some basic cybersecurity rules can ensure that users will stay safe from Vidar malware and the incident response team will work effectively.

As such, users should be careful when downloading attachments in emails from unknown senders. The best practice is to avoid downloading such files altogether, therefore not putting oneself in danger at all.

In addition, downloading only licensed software from trustworthy sources and avoiding gaming hacking clients greatly reduced the risk of being infected with malware such as Vidar trojan, which uses these attack vectors to infect victims.

The distribution process of Vidar

According to the Vidar trojan analysis, Vidar is distributed through spam email campaigns as a malicious attachment, like other malware. In addition, cases of Vidar being distributed using shady software and gaming hack clients have also been recorded. Vidar infostealer targets users all over the world, except some ex-USSR countries, including Russia.

How to detect Vidar using ANY.RUN?

Some malware creates files in which it named itself. You can find such info about Vidar trojan using ANY.RUN's "Static Discovering" during your Vidar analysis. Open either the "Files" tab in the lower part of the task's window or click on the process and then on the "More Info" button in the appeared window. After that, all you need to do is click on the file.

arkei vidar log file Figure 3: Vidar's log file

Conclusion

Vidar is a hazardous information stealer trojan, distributed as malware as a service. Thanks to its extensive stealer feature set, Vidar trojan can be used to retrieve a wide variety of information, including stealing select cryptocurrency coins from the users. Additionally, Vidar is capable of stealing data from TOR.

Thankfully, malware hunting services like ANY.RUN allows researchers to conduct extensive studies of malware samples in a secure environment, allowing them to spread information about the danger and develop effective countermeasures and incident response.

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