General
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Target
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989
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Size
757KB
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Sample
240328-qnfxzsgc58
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MD5
07f17a72c0f765e4f1c5ed8b901664f1
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SHA1
9a452b499f1559848073efad5f16daa013410f77
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SHA256
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989
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SHA512
be2103c6b9ad6fbde3aa10c201f9f72d1451c2772a5d260472380c1aa1c4fded76215a456525057b80f9bdc8fe635b6d3a2c484466024abec7dfb7457737d40b
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SSDEEP
12288:yLK0nYOA2k12ZxJDv0KrK27P99F2g4Oh8kA2RGXmCYRY8ucQjRLLe:yJDJkcb/rK419A343A2Rwm5RY8x0LL
Static task
static1
Behavioral task
behavioral1
Sample
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989.exe
Resource
win11-20240319-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
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989
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Size
757KB
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MD5
07f17a72c0f765e4f1c5ed8b901664f1
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SHA1
9a452b499f1559848073efad5f16daa013410f77
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SHA256
37250739ce0adba25c91ee6011c860b3fddb0d762c0679d6bd864e763d28e989
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SHA512
be2103c6b9ad6fbde3aa10c201f9f72d1451c2772a5d260472380c1aa1c4fded76215a456525057b80f9bdc8fe635b6d3a2c484466024abec7dfb7457737d40b
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SSDEEP
12288:yLK0nYOA2k12ZxJDv0KrK27P99F2g4Oh8kA2RGXmCYRY8ucQjRLLe:yJDJkcb/rK419A343A2Rwm5RY8x0LL
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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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