General
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Target
file.exe
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Size
207KB
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Sample
231120-ygyhfsag3s
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MD5
1063b50e4283dd4a74e80ef4e9ab1e93
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SHA1
40bf547f2a7dcc107c02fbf15cc6f717d8042200
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SHA256
259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c
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SHA512
f4bd07f60ebdc1d9eca3741c6daabe094f1985f623b0c1b513849c8d99c6062039bb24e9ce64682b9561e9d1b716f922ef3398ff4ecbf32a84da0493785c5b4a
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SSDEEP
3072:eZzbmIis7CwOgdSoOxrlDPlwVzoIkINXwcz5w9F12bvmdk:qViSC/gdcwVHJoim
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231023-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
file.exe
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Size
207KB
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MD5
1063b50e4283dd4a74e80ef4e9ab1e93
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SHA1
40bf547f2a7dcc107c02fbf15cc6f717d8042200
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SHA256
259f8a663b9300a6a9422da2ba09cc5ec58455db0edf216dcc7c25d5dfe1215c
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SHA512
f4bd07f60ebdc1d9eca3741c6daabe094f1985f623b0c1b513849c8d99c6062039bb24e9ce64682b9561e9d1b716f922ef3398ff4ecbf32a84da0493785c5b4a
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SSDEEP
3072:eZzbmIis7CwOgdSoOxrlDPlwVzoIkINXwcz5w9F12bvmdk:qViSC/gdcwVHJoim
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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