General
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Target
b6b5b959c1119731296f7f93f3d8c1d988b0d8aeefa1e196c4a320667bb41b58
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Size
751KB
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Sample
230402-1dtq7sag76
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MD5
0cbdefac2e400fbb9299114fe03104a5
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SHA1
711e6efe0c6732f428f3d70cb09d2dea26990712
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SHA256
b6b5b959c1119731296f7f93f3d8c1d988b0d8aeefa1e196c4a320667bb41b58
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SHA512
4e9e46484c3b50ab2921b220d4207f738cf5d3e8f668717aaa26e2a5b53a68dfd76c4cabc9ab1404b297a6af82a1f11224f5236edbe3803a2335b6d263eb0188
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SSDEEP
12288:NFBAdEUnWmaxW0KLxZUK8dmcIs7celGGmiJY6/EFm3Gt:+dVuKn56mc6gSaYlg3Gt
Static task
static1
Behavioral task
behavioral1
Sample
b6b5b959c1119731296f7f93f3d8c1d988b0d8aeefa1e196c4a320667bb41b58.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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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
b6b5b959c1119731296f7f93f3d8c1d988b0d8aeefa1e196c4a320667bb41b58
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Size
751KB
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MD5
0cbdefac2e400fbb9299114fe03104a5
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SHA1
711e6efe0c6732f428f3d70cb09d2dea26990712
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SHA256
b6b5b959c1119731296f7f93f3d8c1d988b0d8aeefa1e196c4a320667bb41b58
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SHA512
4e9e46484c3b50ab2921b220d4207f738cf5d3e8f668717aaa26e2a5b53a68dfd76c4cabc9ab1404b297a6af82a1f11224f5236edbe3803a2335b6d263eb0188
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SSDEEP
12288:NFBAdEUnWmaxW0KLxZUK8dmcIs7celGGmiJY6/EFm3Gt:+dVuKn56mc6gSaYlg3Gt
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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