General
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Target
file
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Size
257KB
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Sample
231119-nphf4ahf65
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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
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231020-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
-
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Target
file
-
Size
257KB
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MD5
98bc4df0a0ab7afce91f477647addd23
-
SHA1
c5177f07bd2ab18735995cf15feae75ac3e0056b
-
SHA256
557b2c8317bfbb669d0f226b2c8844f22dccd54c627ad12edb6c01b4a9d0fd0b
-
SHA512
03bc62eaf62a08d5b943a51972406aca68da0b09ec4640987cc5e5f85784e48ffe954a42fddda50e479b59ef7551408f772a6b889c657696d3bce946e1acd4e4
-
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