General
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Target
84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349
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Size
731KB
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Sample
230329-djq6yagb8t
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MD5
583902cac95890b80a0c3f43d6211abf
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SHA1
14f759f5c445bdf3564d590db2151464b1ec6211
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SHA256
84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349
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SHA512
2d84d051f24dad26b09905f31101cd5f9a1368f3eaa34f98dcdb2a1cd327c0dfa9fc652ed2af3afc8b27ad5d31be2fee3896669730b9c4c51877c6d21e10cdb0
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SSDEEP
12288:OCTtYFG9PmPUNWayCHCbDJ86Is5TJ0mw4sZ4MLmWGt8sXhfeXKFPPzen/DSiVT:RMuyUNWayKe8HsH/a/ZctEaBPzen/5d
Static task
static1
Behavioral task
behavioral1
Sample
84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.jywd
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offline_id
MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Targets
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Target
84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349
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Size
731KB
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MD5
583902cac95890b80a0c3f43d6211abf
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SHA1
14f759f5c445bdf3564d590db2151464b1ec6211
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SHA256
84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349
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SHA512
2d84d051f24dad26b09905f31101cd5f9a1368f3eaa34f98dcdb2a1cd327c0dfa9fc652ed2af3afc8b27ad5d31be2fee3896669730b9c4c51877c6d21e10cdb0
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SSDEEP
12288:OCTtYFG9PmPUNWayCHCbDJ86Is5TJ0mw4sZ4MLmWGt8sXhfeXKFPPzen/DSiVT:RMuyUNWayKe8HsH/a/ZctEaBPzen/5d
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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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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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