General
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Target
fbebfab97f5d29e5c7e85846b1912aa03d07633e692be9cd5f223ceefccbf2eb
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Size
773KB
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Sample
230618-zqwwnahf96
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MD5
26f801ba9cecd7691c73f107cf1cf785
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SHA1
83bf4aae82c8fe6bbcfc2edfb6a406c28748e343
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SHA256
fbebfab97f5d29e5c7e85846b1912aa03d07633e692be9cd5f223ceefccbf2eb
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SHA512
fdb0f2b9e0379ff1a1325d58e66e8166142f1558b9c0625acc293c8f3beccabbaeb2431eb464793aa1765cd784fa995220ab17cee12415a504dff6e3ce297e98
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SSDEEP
12288:xyUkYmfbhttfbALxi6C+S8UODSvvm0uiZ9S9jqDiMnN3B3GL:EUkYWdbjEk6C+S8U4Sv+FSDLNR3GL
Static task
static1
Behavioral task
behavioral1
Sample
fbebfab97f5d29e5c7e85846b1912aa03d07633e692be9cd5f223ceefccbf2eb.exe
Resource
win10v2004-20230220-en
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
fbebfab97f5d29e5c7e85846b1912aa03d07633e692be9cd5f223ceefccbf2eb
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Size
773KB
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MD5
26f801ba9cecd7691c73f107cf1cf785
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SHA1
83bf4aae82c8fe6bbcfc2edfb6a406c28748e343
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SHA256
fbebfab97f5d29e5c7e85846b1912aa03d07633e692be9cd5f223ceefccbf2eb
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SHA512
fdb0f2b9e0379ff1a1325d58e66e8166142f1558b9c0625acc293c8f3beccabbaeb2431eb464793aa1765cd784fa995220ab17cee12415a504dff6e3ce297e98
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SSDEEP
12288:xyUkYmfbhttfbALxi6C+S8UODSvvm0uiZ9S9jqDiMnN3B3GL:EUkYWdbjEk6C+S8U4Sv+FSDLNR3GL
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Detected Djvu ransomware
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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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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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