General
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Target
setup.exe
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Size
694KB
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Sample
230403-nwq2taed69
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MD5
f22ae52f2434a2203e71423aa189e7ec
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SHA1
c45f5f08879e47e6a48257eb125744ca4b1a1472
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SHA256
47c30977596a3c9dfaaeb86fae2200bd2929ea03b7092cf32c96fa9768b98aa0
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SHA512
d30763692569e13fed251b5adcb194f953a81f974e2a77dddaeed31e79216ea724490f7f799bb6a4a0e4056a964e8ec4b43f7834eb463bc6d43da254fd13870c
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SSDEEP
12288:KIBIrGI9DHyzc7euF198J7r3LufYERt3EsaJaocxfLLrp/On6p:ty9hHyzc7eC9Q7ufYE/3EsK5MfLLrdA
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
setup.exe
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Size
694KB
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MD5
f22ae52f2434a2203e71423aa189e7ec
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SHA1
c45f5f08879e47e6a48257eb125744ca4b1a1472
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SHA256
47c30977596a3c9dfaaeb86fae2200bd2929ea03b7092cf32c96fa9768b98aa0
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SHA512
d30763692569e13fed251b5adcb194f953a81f974e2a77dddaeed31e79216ea724490f7f799bb6a4a0e4056a964e8ec4b43f7834eb463bc6d43da254fd13870c
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SSDEEP
12288:KIBIrGI9DHyzc7euF198J7r3LufYERt3EsaJaocxfLLrp/On6p:ty9hHyzc7eC9Q7ufYE/3EsK5MfLLrdA
Score10/10-
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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Loads dropped DLL
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Modifies file permissions
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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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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