General
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Target
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e
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Size
785KB
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Sample
240328-kpyljagf8s
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MD5
a744b8ed52d3b82db1216f3dd3f8815f
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SHA1
3c9c9a8663432156a9485bc9aacd5360696ddd1a
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SHA256
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e
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SHA512
3681cc79dfdfae65938dbb38b4ed4f34711cded3b881944fc5d88c3d70208e232fc56924e20fed0426fc933c08295e52484e265b857aefd36073b5ac47beb306
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SSDEEP
12288:xjVmV/m+Rkqy1GAYB96nU5tBb9sM2LLlxfszPveGzN0xHj3EFvdmszXy6uJkS:qVOasY+nUZC/wzvwqFvlzXhuiS
Static task
static1
Behavioral task
behavioral1
Sample
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e.exe
Resource
win11-20240214-en
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.vook
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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
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e
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Size
785KB
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MD5
a744b8ed52d3b82db1216f3dd3f8815f
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SHA1
3c9c9a8663432156a9485bc9aacd5360696ddd1a
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SHA256
58927f9b69fc382a5c5bd74591caa0d1489e39f96246059944b1cb7cdf279c7e
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SHA512
3681cc79dfdfae65938dbb38b4ed4f34711cded3b881944fc5d88c3d70208e232fc56924e20fed0426fc933c08295e52484e265b857aefd36073b5ac47beb306
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SSDEEP
12288:xjVmV/m+Rkqy1GAYB96nU5tBb9sM2LLlxfszPveGzN0xHj3EFvdmszXy6uJkS:qVOasY+nUZC/wzvwqFvlzXhuiS
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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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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