General
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Target
0422e066df12417715359b8cf8f84e4c0616494f9a350cc0a3f346c8f1577552
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Size
779KB
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Sample
230618-t1r3kagd55
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MD5
f09ac35d21057f842c4d0eb0676f0499
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SHA1
b408848679947f58a6d502c51a63ae72f3d02d65
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SHA256
0422e066df12417715359b8cf8f84e4c0616494f9a350cc0a3f346c8f1577552
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SHA512
abad0064c9640ab9d853e0e479f5e01040768ba26af637bcb2db885ff22e4f7a542a42e0095e5c4257c447a20f1dbae58c1d213b09037c005854610518f01d18
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SSDEEP
24576:pPyaxeHv9Ny7h6s4AyGFZTTV8w0iFuq+:dy+eHvOh6suyZTTV8wW
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.ahtw
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offline_id
vPWUuYIO6Lzy2cGt8zL7FERKTf4QMBPjn7F005t1
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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
4.3
a129a8292a021d62796bfced1018aa1f
https://steamcommunity.com/profiles/76561199514261168
https://t.me/kamaprimo
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profile_id_v2
a129a8292a021d62796bfced1018aa1f
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user_agent
Mozilla/5.0 (Linux; U; Tizen 2.0; en-us) AppleWebKit/537.1 (KHTML, like Gecko) Mobile TizenBrowser/2.0
Targets
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Target
0422e066df12417715359b8cf8f84e4c0616494f9a350cc0a3f346c8f1577552
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Size
779KB
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MD5
f09ac35d21057f842c4d0eb0676f0499
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SHA1
b408848679947f58a6d502c51a63ae72f3d02d65
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SHA256
0422e066df12417715359b8cf8f84e4c0616494f9a350cc0a3f346c8f1577552
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SHA512
abad0064c9640ab9d853e0e479f5e01040768ba26af637bcb2db885ff22e4f7a542a42e0095e5c4257c447a20f1dbae58c1d213b09037c005854610518f01d18
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SSDEEP
24576:pPyaxeHv9Ny7h6s4AyGFZTTV8w0iFuq+:dy+eHvOh6suyZTTV8wW
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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