General
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Target
98bc4df0a0ab7afce91f477647addd23.bin
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Size
156KB
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Sample
231121-c35yrscc8t
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MD5
50f93e6bfd2248e90d5a46b36251903a
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SHA1
f0d217fb8e848c18059749f3c92cd48a042fb660
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SHA256
a614162f53d13ad83dd30c1d45770d6ac2c157330e9a11134cc24bca08e59def
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SHA512
0a6ae39340ae17dde2fd2fb90d955306bba89814e2668189eb80aa35ecc2a0113cd634884772935f4e700dea9e574bb5c41c1e1f453110660b89feeb35f6c57a
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SSDEEP
3072:AB8SKQ126XhkORumI4ac47K9k1pwD/EYMyRnnfMexAqZppHkXwP60jWVaAVIec:Q8SKQ8uqQHhv4+9kYBfnnfMexbED4WVe
Static task
static1
Behavioral task
behavioral1
Sample
557b2c8317bfbb669d0f226b2c8844f22dccd54c627ad12edb6c01b4a9d0fd0b.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
557b2c8317bfbb669d0f226b2c8844f22dccd54c627ad12edb6c01b4a9d0fd0b.exe
Resource
win10v2004-20231023-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
557b2c8317bfbb669d0f226b2c8844f22dccd54c627ad12edb6c01b4a9d0fd0b.exe
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Size
257KB
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MD5
98bc4df0a0ab7afce91f477647addd23
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SHA1
c5177f07bd2ab18735995cf15feae75ac3e0056b
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SHA256
557b2c8317bfbb669d0f226b2c8844f22dccd54c627ad12edb6c01b4a9d0fd0b
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SHA512
03bc62eaf62a08d5b943a51972406aca68da0b09ec4640987cc5e5f85784e48ffe954a42fddda50e479b59ef7551408f772a6b889c657696d3bce946e1acd4e4
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SSDEEP
3072:EfTwLZl44Y3HVhSq2zOLPWGkc5dFKkM/Uv2Tnl29Ri8A7ovbDh9U:Cgl4n3y1q7kchKkgvn98UMM
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XMRig Miner payload
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Creates new service(s)
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Modifies Windows Firewall
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Sets service image path in registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2