General
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Target
file
-
Size
274KB
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Sample
231006-zj1ahafh3z
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MD5
049fdbc1012cb68aaa6818b61b7f4b11
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SHA1
ba553585b390812b6c061c5912572504629bd3c6
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SHA256
a16609f43e79b5beb8901046e9f3d968fb02e955e25d6e6dc3e73e59b76cee23
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SHA512
b0407c3908ebe8ec140a909ad7b982491ec4240b12c965aa9c6e70d615287211dcef49e59fb18959128c41834f55b27f939fe765a9aba069218babb8856968c5
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SSDEEP
3072:Fw9OwdZjZb813D9L1vwY4rRh9g9sPgxBU:mhZ9b85DnvwY49g9s4xB
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
-
-
Target
file
-
Size
274KB
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MD5
049fdbc1012cb68aaa6818b61b7f4b11
-
SHA1
ba553585b390812b6c061c5912572504629bd3c6
-
SHA256
a16609f43e79b5beb8901046e9f3d968fb02e955e25d6e6dc3e73e59b76cee23
-
SHA512
b0407c3908ebe8ec140a909ad7b982491ec4240b12c965aa9c6e70d615287211dcef49e59fb18959128c41834f55b27f939fe765a9aba069218babb8856968c5
-
SSDEEP
3072:Fw9OwdZjZb813D9L1vwY4rRh9g9sPgxBU:mhZ9b85DnvwY49g9s4xB
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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