General
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Target
c53755e6a3b1484b5e710d80676afd74f7c9ad114330daef2dff158ff7e9c795
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Size
737KB
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Sample
230619-lqgvvada67
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MD5
800f6f81443a134ca1e210f8fcef0607
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SHA1
26d503e2db3179c5d061874929bd09ac72bc2f5e
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SHA256
c53755e6a3b1484b5e710d80676afd74f7c9ad114330daef2dff158ff7e9c795
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SHA512
213ad15646a41404d644157e16ee3c71778012006af54d8a5b708188095f4fb4a76d3b94c190646b33473c2ca61ecbc7fff06383bb7faee499b4018b05fa47a3
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SSDEEP
12288:3uvGscbf3mS27Jv9c8v4Yn2K2p6mW2ksRueHPHooJMExrzNvOqcR6LByW9:3u6jfc9c8Xk6m/kKXHfooiEJzNW2w
Static task
static1
Behavioral task
behavioral1
Sample
c53755e6a3b1484b5e710d80676afd74f7c9ad114330daef2dff158ff7e9c795.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
c53755e6a3b1484b5e710d80676afd74f7c9ad114330daef2dff158ff7e9c795
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Size
737KB
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MD5
800f6f81443a134ca1e210f8fcef0607
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SHA1
26d503e2db3179c5d061874929bd09ac72bc2f5e
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SHA256
c53755e6a3b1484b5e710d80676afd74f7c9ad114330daef2dff158ff7e9c795
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SHA512
213ad15646a41404d644157e16ee3c71778012006af54d8a5b708188095f4fb4a76d3b94c190646b33473c2ca61ecbc7fff06383bb7faee499b4018b05fa47a3
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SSDEEP
12288:3uvGscbf3mS27Jv9c8v4Yn2K2p6mW2ksRueHPHooJMExrzNvOqcR6LByW9:3u6jfc9c8Xk6m/kKXHfooiEJzNW2w
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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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