General
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Target
d5a8b76a249af2b5f303b5d5161a489a5e0c54974a78a69306f4efc262a5c9f0
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Size
848KB
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Sample
210726-vssarhqze6
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MD5
29b04c025deee623a9d0d646b2d4ec0d
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SHA1
d5a86e8f9cfa1ff0da3f1d96ea5c4bd7793663f0
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SHA256
d5a8b76a249af2b5f303b5d5161a489a5e0c54974a78a69306f4efc262a5c9f0
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SHA512
6f062d2212c6ace3c51a9bcf84ebe7b4d8661a8bd9e762c566bcab0f576f7788be18ceba761e68c53b5db7a26c77baefb0d0fe40244c49c72ad2d77cdf6c1d2f
Malware Config
Extracted
vidar
39.7
517
https://shpak125.tumblr.com/
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profile_id
517
Targets
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Target
d5a8b76a249af2b5f303b5d5161a489a5e0c54974a78a69306f4efc262a5c9f0
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Size
848KB
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MD5
29b04c025deee623a9d0d646b2d4ec0d
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SHA1
d5a86e8f9cfa1ff0da3f1d96ea5c4bd7793663f0
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SHA256
d5a8b76a249af2b5f303b5d5161a489a5e0c54974a78a69306f4efc262a5c9f0
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SHA512
6f062d2212c6ace3c51a9bcf84ebe7b4d8661a8bd9e762c566bcab0f576f7788be18ceba761e68c53b5db7a26c77baefb0d0fe40244c49c72ad2d77cdf6c1d2f
Score10/10-
Vidar
Vidar is an infostealer based on Arkei stealer.
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suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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Vidar Stealer
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Downloads MZ/PE file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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