General
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Target
f99b8b120faaced1026f126725cd37ded3f63e673954c6fcbcf31bcffb97cee9
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Size
702KB
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Sample
221230-bv7lyshh9s
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MD5
b3d6b843f2e2dae8248484a3d4477411
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SHA1
83fb37dd10317b22b6a3bff64effca28225fd33b
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SHA256
8b616c8d8a4978d3a9e1c6095b65605252199846e0dfd742da73fa418cbf2130
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SHA512
b25ae74257d1ee7039b353aaf4960f8df5dc653b2a11f0eaeab9c8720247a117c656dcecc4e925d8e91bcf1dad352b036026d48abbd39d0f5ca1460c232bf95c
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SSDEEP
12288:+m49G+pZZsMoj4j9TlvG14EFvFG8LSg/JDjY+0xldlsIqTiiGM:e5+MxTl3EFvFLS+BjYtT9lM
Static task
static1
Behavioral task
behavioral1
Sample
f99b8b120faaced1026f126725cd37ded3f63e673954c6fcbcf31bcffb97cee9.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
f99b8b120faaced1026f126725cd37ded3f63e673954c6fcbcf31bcffb97cee9.exe
Resource
win10v2004-20221111-en
Malware Config
Extracted
djvu
http://ex3mall.com/test1/get.php
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extension
.znsm
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offline_id
bE95c2N1x4fARf4W3qmFCjkKPwfFkQaU9NpNBMt1
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payload_url
http://uaery.top/dl/build2.exe
http://ex3mall.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
1.7
19
https://t.me/robloxblackl
https://steamcommunity.com/profiles/76561199458928097
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profile_id
19
Targets
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Target
f99b8b120faaced1026f126725cd37ded3f63e673954c6fcbcf31bcffb97cee9
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Size
813KB
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MD5
4363753c4b4c64a27ecb301be98fc73b
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SHA1
e1118ceef2f330b602a2f83ecaf0cf9394d25965
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SHA256
f99b8b120faaced1026f126725cd37ded3f63e673954c6fcbcf31bcffb97cee9
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SHA512
8ce5e40cb795c30098bce5bfaf79120525dde3a114acd017b47fa5ff41c8545e882a0a235ac86876a28dba971e4d7bd6705c6abd33d9930b301c9be542a4e16f
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SSDEEP
12288:1+bHGpJZoMo7gj9FlvG14EFv1G8HSgtJ3FYC0dldtsE0PdYj:8mBKE5Fl3EFv1HS+JFY9T9gY
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Detected Djvu ransomware
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Downloads MZ/PE file
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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