General
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Target
fb7aa09ede64e5eafc124a2c52eba9777fa619185dc272a689be91ec926273a7
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Size
802KB
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Sample
230328-29esladh24
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MD5
8cbef39831b560ce8f5c957f93d1f343
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SHA1
eacc949fa8b830f3049bb81461c5b87f7d7769d8
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SHA256
fb7aa09ede64e5eafc124a2c52eba9777fa619185dc272a689be91ec926273a7
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SHA512
97b7756f668142e19411282137a01ffe3adff7f0e49d57e00bc0c3560a6ac19c3720b686d7a88864a6994a0182eaff65ea76f5c75ae8dab859aba9b139d6f79d
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SSDEEP
12288:sfNKsuZQdqiW2xxHXXxebgF7B1DkDwYJM60my977:5suZQMYXXxebgF73DklMRNv
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.jyos
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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
fb7aa09ede64e5eafc124a2c52eba9777fa619185dc272a689be91ec926273a7
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Size
802KB
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MD5
8cbef39831b560ce8f5c957f93d1f343
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SHA1
eacc949fa8b830f3049bb81461c5b87f7d7769d8
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SHA256
fb7aa09ede64e5eafc124a2c52eba9777fa619185dc272a689be91ec926273a7
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SHA512
97b7756f668142e19411282137a01ffe3adff7f0e49d57e00bc0c3560a6ac19c3720b686d7a88864a6994a0182eaff65ea76f5c75ae8dab859aba9b139d6f79d
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SSDEEP
12288:sfNKsuZQdqiW2xxHXXxebgF7B1DkDwYJM60my977:5suZQMYXXxebgF73DklMRNv
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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