General
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Target
3b8fa8d62b07648af063391913ed2651eadd5d47f063a6f6c5b493a01f4b2c83
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Size
854KB
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Sample
211023-2579cadddn
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MD5
c07161e775c2294a86f203f8863487b2
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SHA1
5d35df7e03416ee98473c2b0b900ba76887f5140
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SHA256
3b8fa8d62b07648af063391913ed2651eadd5d47f063a6f6c5b493a01f4b2c83
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SHA512
f330c64ddd6e3ea414e29a598863e63c2f354b42577b8bd8039fe60515603801f0556aa4d817a3c37d916d2e6955d968c2da7740ceaec86389df77fd5c1af320
Static task
static1
Behavioral task
behavioral1
Sample
3b8fa8d62b07648af063391913ed2651eadd5d47f063a6f6c5b493a01f4b2c83.exe
Resource
win10-en-20210920
Malware Config
Extracted
vidar
41.5
517
https://mas.to/@xeroxxx
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profile_id
517
Extracted
djvu
http://rlrz.org/fhsgtsspen6
Targets
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Target
3b8fa8d62b07648af063391913ed2651eadd5d47f063a6f6c5b493a01f4b2c83
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Size
854KB
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MD5
c07161e775c2294a86f203f8863487b2
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SHA1
5d35df7e03416ee98473c2b0b900ba76887f5140
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SHA256
3b8fa8d62b07648af063391913ed2651eadd5d47f063a6f6c5b493a01f4b2c83
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SHA512
f330c64ddd6e3ea414e29a598863e63c2f354b42577b8bd8039fe60515603801f0556aa4d817a3c37d916d2e6955d968c2da7740ceaec86389df77fd5c1af320
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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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