General
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Target
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d
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Size
784KB
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Sample
240328-gt8eraef6s
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MD5
e818ca3878bef8ac42036e00349d4f80
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SHA1
55f1580db19293231e0fd9c2674c654df74f4977
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SHA256
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d
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SHA512
8efcc1944570dbb30f8f66d0b33fd86b3658b1cc9364d66bcc3e03c3d9b5c4df009fc9aa54b74694c7844c0c3f489862a4a2fe772825e584d67429916019f2bc
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SSDEEP
12288:qmdGm2h3qrk/3SVPP/5OYB+kN9Ubu+PhEmScjqNaT64w:ohiL5pBP9AuKrdqo64w
Static task
static1
Behavioral task
behavioral1
Sample
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d.exe
Resource
win11-20240221-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
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d
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Size
784KB
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MD5
e818ca3878bef8ac42036e00349d4f80
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SHA1
55f1580db19293231e0fd9c2674c654df74f4977
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SHA256
884f861281d4879fbda0fe73993c1aed910bd491fc571646a6eae0e92d01673d
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SHA512
8efcc1944570dbb30f8f66d0b33fd86b3658b1cc9364d66bcc3e03c3d9b5c4df009fc9aa54b74694c7844c0c3f489862a4a2fe772825e584d67429916019f2bc
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SSDEEP
12288:qmdGm2h3qrk/3SVPP/5OYB+kN9Ubu+PhEmScjqNaT64w:ohiL5pBP9AuKrdqo64w
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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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