General
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Target
f3ccad9301556e9bd0d1588af9a32d4f5b0d784c8d6d59ff631667ffb30a2ba1
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Size
840KB
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Sample
211207-nzqkfshadl
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MD5
e9734e7b1306b9b2bbfe038570882890
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SHA1
7b1723468dba22ff5299e9df10fb7f880fa4cb6c
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SHA256
f3ccad9301556e9bd0d1588af9a32d4f5b0d784c8d6d59ff631667ffb30a2ba1
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SHA512
050f5a8dc2e5fc24c0b8564712b8783d9029f9d85945d16dc507aad0a317493b4d36574c2906ebe7a975e1d92265fd54562369c486afbf63954f0bf3603f03b6
Static task
static1
Behavioral task
behavioral1
Sample
f3ccad9301556e9bd0d1588af9a32d4f5b0d784c8d6d59ff631667ffb30a2ba1.exe
Resource
win10-en-20211014
Malware Config
Extracted
djvu
http://tzgl.org/fhsgtsspen6/get.php
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extension
.wnlu
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offline_id
gYuqQ5GsAaJom08TivUVhlPzZDKd916x4NcXrWt1
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payload_url
http://kotob.top/dl/build2.exe
http://tzgl.org/files/1/build3.exe
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ransomnote
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Extracted
vidar
49
517
https://mstdn.social/@sergeev43
https://koyu.space/@sergeev45
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profile_id
517
Targets
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Target
f3ccad9301556e9bd0d1588af9a32d4f5b0d784c8d6d59ff631667ffb30a2ba1
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Size
840KB
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MD5
e9734e7b1306b9b2bbfe038570882890
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SHA1
7b1723468dba22ff5299e9df10fb7f880fa4cb6c
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SHA256
f3ccad9301556e9bd0d1588af9a32d4f5b0d784c8d6d59ff631667ffb30a2ba1
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SHA512
050f5a8dc2e5fc24c0b8564712b8783d9029f9d85945d16dc507aad0a317493b4d36574c2906ebe7a975e1d92265fd54562369c486afbf63954f0bf3603f03b6
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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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