General
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Target
a1f39da4d7b4fad7ccafe3796632087f5074df2bb65f2be6927f343123ebd727
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Size
738KB
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Sample
230619-jsfz8ace45
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MD5
c2584d33a95ebfa080367aec7b756545
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SHA1
44d89f3687b976e57b15d990dc8769b133c58297
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SHA256
a1f39da4d7b4fad7ccafe3796632087f5074df2bb65f2be6927f343123ebd727
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SHA512
feb5f6ec599f0d0bb7b598879cb970a3b1f9285a2ee37aa7964ed7d82af099abe73f8a38329816eda505302e274e784e86793f03cfa0ae71d20727d6e593a047
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SSDEEP
12288:9ZNOmg7GH9CQxLvkxgPcGupirgNkxG1z/An0JCo8Yl:9ZCk9RYxgERpWO6I8n0oo
Static task
static1
Behavioral task
behavioral1
Sample
a1f39da4d7b4fad7ccafe3796632087f5074df2bb65f2be6927f343123ebd727.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
a1f39da4d7b4fad7ccafe3796632087f5074df2bb65f2be6927f343123ebd727
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Size
738KB
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MD5
c2584d33a95ebfa080367aec7b756545
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SHA1
44d89f3687b976e57b15d990dc8769b133c58297
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SHA256
a1f39da4d7b4fad7ccafe3796632087f5074df2bb65f2be6927f343123ebd727
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SHA512
feb5f6ec599f0d0bb7b598879cb970a3b1f9285a2ee37aa7964ed7d82af099abe73f8a38329816eda505302e274e784e86793f03cfa0ae71d20727d6e593a047
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SSDEEP
12288:9ZNOmg7GH9CQxLvkxgPcGupirgNkxG1z/An0JCo8Yl:9ZCk9RYxgERpWO6I8n0oo
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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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