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General
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Target
file
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Size
334KB
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Sample
231011-labc5afe47
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MD5
326c87f0f560c113b40c81b5ce323446
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SHA1
89e1888d493b6bba3f419d93cc1ea5baead3ab99
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SHA256
551b111c31fac62a31b4621971488f645e4d24b709c1989a993f6c3a5b0091ee
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SHA512
e38705e915f7e3c4a18229856162782040e84e986e1ed67f282a28be2d9de7b4d988caf975125170c23c88133f90fb4e28fb39538aee3ebaab452dab54789060
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SSDEEP
3072:e0dFL6r3o6iqLCJTWqN/nqUQuGtQc6FHbTtMM0HIb4RINRC2No:lFLu3BiqLtqpn1RFxMM+Ib56
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
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Target
file
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Size
334KB
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MD5
326c87f0f560c113b40c81b5ce323446
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SHA1
89e1888d493b6bba3f419d93cc1ea5baead3ab99
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SHA256
551b111c31fac62a31b4621971488f645e4d24b709c1989a993f6c3a5b0091ee
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SHA512
e38705e915f7e3c4a18229856162782040e84e986e1ed67f282a28be2d9de7b4d988caf975125170c23c88133f90fb4e28fb39538aee3ebaab452dab54789060
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SSDEEP
3072:e0dFL6r3o6iqLCJTWqN/nqUQuGtQc6FHbTtMM0HIb4RINRC2No:lFLu3BiqLtqpn1RFxMM+Ib56
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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