General
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Target
9a04f783db3b942fd2da4d2cfc5fe81adb348484494c6d9debdae35050dbe2e9
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Size
701KB
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Sample
240404-y4gs8ahd21
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MD5
c397c2167790cb5d4301c293850f7138
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SHA1
69d47e8bf7d98f8fbff3394ac54555ca68fa6535
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SHA256
9a04f783db3b942fd2da4d2cfc5fe81adb348484494c6d9debdae35050dbe2e9
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SHA512
a0c6347bb7bdd19c252e089e6747947cc999e739cc3352e39b72d89e51047725290367c81965f66c0fc7c32830994cc0a00b9b1a9e385784f6577f62cedff6f5
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SSDEEP
12288:3xcH91fBMU59+Lro2yFbxXj4EUMoSD6SgKXpm9DeU8vmSc/c2YtWa7Sseg0w:3xcd7M4+Ls2wT4PMBD589DnkmSCc2g7Z
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.uajs
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offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
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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
https://steamcommunity.com/profiles/76561199662282318
https://t.me/t8jmhl
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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 OPR/108.0.0.0
Targets
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Target
9a04f783db3b942fd2da4d2cfc5fe81adb348484494c6d9debdae35050dbe2e9
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Size
701KB
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MD5
c397c2167790cb5d4301c293850f7138
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SHA1
69d47e8bf7d98f8fbff3394ac54555ca68fa6535
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SHA256
9a04f783db3b942fd2da4d2cfc5fe81adb348484494c6d9debdae35050dbe2e9
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SHA512
a0c6347bb7bdd19c252e089e6747947cc999e739cc3352e39b72d89e51047725290367c81965f66c0fc7c32830994cc0a00b9b1a9e385784f6577f62cedff6f5
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SSDEEP
12288:3xcH91fBMU59+Lro2yFbxXj4EUMoSD6SgKXpm9DeU8vmSc/c2YtWa7Sseg0w:3xcd7M4+Ls2wT4PMBD589DnkmSCc2g7Z
Score10/10-
Detect Vidar Stealer
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Detected Djvu ransomware
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Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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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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