General
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Target
4b6522196a10a5443f10c5dcbdf09fd73cbce8a85213f369dfaa9774c4c27968
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Size
832KB
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Sample
210727-ffjvpc8x92
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MD5
97c7bb48650b39accc0f3efa5f742194
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SHA1
17de166d077405f0e68d17a44e128ce0c12b503b
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SHA256
4b6522196a10a5443f10c5dcbdf09fd73cbce8a85213f369dfaa9774c4c27968
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SHA512
7a4223a4e010527c9b4ca21fad7b570d52193d79a8369aba0885823252854745013c769c26d904c3f9a7f69b0ef2453b66401488cd8a897ad9a29d595da9b6f7
Malware Config
Extracted
vidar
39.7
517
https://shpak125.tumblr.com/
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profile_id
517
Targets
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Target
4b6522196a10a5443f10c5dcbdf09fd73cbce8a85213f369dfaa9774c4c27968
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Size
832KB
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MD5
97c7bb48650b39accc0f3efa5f742194
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SHA1
17de166d077405f0e68d17a44e128ce0c12b503b
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SHA256
4b6522196a10a5443f10c5dcbdf09fd73cbce8a85213f369dfaa9774c4c27968
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SHA512
7a4223a4e010527c9b4ca21fad7b570d52193d79a8369aba0885823252854745013c769c26d904c3f9a7f69b0ef2453b66401488cd8a897ad9a29d595da9b6f7
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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