General
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Target
5534481735d6672b9046d9d85074755c3e7ccd28e6e4d2b2fefa07c86d6ed88f
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Size
773KB
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Sample
230530-fwx65afd46
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MD5
a5e63e4246134311fa8cec5175140984
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SHA1
e0af7300a5cd6cbb9babb4443ee7042c25d7e748
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SHA256
5534481735d6672b9046d9d85074755c3e7ccd28e6e4d2b2fefa07c86d6ed88f
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SHA512
b8792fe262096f249dec3eca7c6b861b4258d6fc3fd3f96a5c1263c07f4942a3ebbeaee0601868a0f4cad04bb6629fce575e85600cd54541e0baf5878a2a004f
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SSDEEP
12288:vJNdycHSaXILFXSy8g1nDpnWmgHwEbmsSTjy6bfn9MmqIZDTDGwf:vJNQESXLoy8gdlh5yCfnMgXD7
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.werz
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offline_id
D4KWjM5DY4jRN5T36xETsvDrARq2cCeStxvviHt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
4.1
77a63e71a10ee1d81a28b5c866b75922
https://steamcommunity.com/profiles/76561199510444991
https://t.me/task4manager
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profile_id_v2
77a63e71a10ee1d81a28b5c866b75922
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.34
Targets
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Target
5534481735d6672b9046d9d85074755c3e7ccd28e6e4d2b2fefa07c86d6ed88f
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Size
773KB
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MD5
a5e63e4246134311fa8cec5175140984
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SHA1
e0af7300a5cd6cbb9babb4443ee7042c25d7e748
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SHA256
5534481735d6672b9046d9d85074755c3e7ccd28e6e4d2b2fefa07c86d6ed88f
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SHA512
b8792fe262096f249dec3eca7c6b861b4258d6fc3fd3f96a5c1263c07f4942a3ebbeaee0601868a0f4cad04bb6629fce575e85600cd54541e0baf5878a2a004f
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SSDEEP
12288:vJNdycHSaXILFXSy8g1nDpnWmgHwEbmsSTjy6bfn9MmqIZDTDGwf:vJNQESXLoy8gdlh5yCfnMgXD7
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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