General
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Target
b5785371bb383b226b2e8a6a4c03198ec85e07250817f5199642f4ce7107d175
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Size
749KB
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Sample
230329-tw2q7saf6v
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MD5
41c2e6a9aedab7b3015ada13c70a5673
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SHA1
62a1c491c10e64d730ad4f589855d8478f017251
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SHA256
b5785371bb383b226b2e8a6a4c03198ec85e07250817f5199642f4ce7107d175
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SHA512
928bc60298c950e9d81316a0dc17914a681838525700740043cf60c1dbc6450b7ef08a4cff32fa9137d6ac345c4f84115dbcd4cc3f9209c7f880b8143c3d9aca
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SSDEEP
12288:Dun9BYl6RKLtnA/K9fwaf9xOj+qMm2GX66g3rBo2S6eW0hGlYsXntFvpyP:DdlfLwKmex8lBDg7G3NWfntF
Static task
static1
Behavioral task
behavioral1
Sample
b5785371bb383b226b2e8a6a4c03198ec85e07250817f5199642f4ce7107d175.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
b5785371bb383b226b2e8a6a4c03198ec85e07250817f5199642f4ce7107d175
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Size
749KB
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MD5
41c2e6a9aedab7b3015ada13c70a5673
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SHA1
62a1c491c10e64d730ad4f589855d8478f017251
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SHA256
b5785371bb383b226b2e8a6a4c03198ec85e07250817f5199642f4ce7107d175
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SHA512
928bc60298c950e9d81316a0dc17914a681838525700740043cf60c1dbc6450b7ef08a4cff32fa9137d6ac345c4f84115dbcd4cc3f9209c7f880b8143c3d9aca
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SSDEEP
12288:Dun9BYl6RKLtnA/K9fwaf9xOj+qMm2GX66g3rBo2S6eW0hGlYsXntFvpyP:DdlfLwKmex8lBDg7G3NWfntF
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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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