General
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Target
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b
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Size
694KB
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Sample
210915-je915sdbfj
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MD5
f886c9b4663164796def3ced70a60b6e
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SHA1
8e03d18b3c679a14d47cb3202f84fe57c11d762d
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SHA256
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b
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SHA512
8504ca95ade3dce108b0e7a9e7f828a203360c58631bd2d5c50557911cfad4632e767bca0bad3ec989ef1a8f938a1a71119b017cbf319585e6870b11201f0c94
Static task
static1
Behavioral task
behavioral1
Sample
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b.exe
Resource
win10-en
Malware Config
Extracted
vidar
40.6
517
https://dimonbk83.tumblr.com/
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profile_id
517
Targets
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Target
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b
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Size
694KB
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MD5
f886c9b4663164796def3ced70a60b6e
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SHA1
8e03d18b3c679a14d47cb3202f84fe57c11d762d
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SHA256
a55150bb6fe4336aaf6ba17fa232005235c81881cf5a07763c368161f06f850b
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SHA512
8504ca95ade3dce108b0e7a9e7f828a203360c58631bd2d5c50557911cfad4632e767bca0bad3ec989ef1a8f938a1a71119b017cbf319585e6870b11201f0c94
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Detected Djvu ransomware
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suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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)
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
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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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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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