General
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Target
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254
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Size
810KB
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Sample
240329-b8qklaeh69
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MD5
064d9695567ef3e6dae8948f0f1da0ec
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SHA1
9efca461702e29435e51e3ef43733fdd892d38c1
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SHA256
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254
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SHA512
aefd8f0c3f81095d27be88e84ff00248cbf55167333a2cf8886d116086810a774aa2e8f55bba0235cec72b1acb330149e7d90337821156ada3f5a3ec0c338ec4
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SSDEEP
12288:nupGpZVmbb25DNn2EArpaViAiE5BpLzMDwrqtHryYUK7/9l6LL6qF3:vZY8N4laAJeBVXqtHryYT/jqF
Static task
static1
Behavioral task
behavioral1
Sample
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254.exe
Resource
win10-20240221-en
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
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extension
.looy
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offline_id
1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
8.6
5739ef2bbcd39fcd59c5746bfe4238c5
https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok
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profile_id_v2
5739ef2bbcd39fcd59c5746bfe4238c5
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Targets
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Target
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254
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Size
810KB
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MD5
064d9695567ef3e6dae8948f0f1da0ec
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SHA1
9efca461702e29435e51e3ef43733fdd892d38c1
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SHA256
6045e387fc9e1b23471ba44a76d8f54cde172b2f28c467875eb6e5c567d6f254
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SHA512
aefd8f0c3f81095d27be88e84ff00248cbf55167333a2cf8886d116086810a774aa2e8f55bba0235cec72b1acb330149e7d90337821156ada3f5a3ec0c338ec4
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SSDEEP
12288:nupGpZVmbb25DNn2EArpaViAiE5BpLzMDwrqtHryYUK7/9l6LL6qF3:vZY8N4laAJeBVXqtHryYT/jqF
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Detect Vidar Stealer
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Detected Djvu ransomware
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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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Adds Run key to start application
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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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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1