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General
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Target
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe_JC.exe
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Size
238KB
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Sample
231003-snljkscf6v
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MD5
51ffe610f2d2622d296524c8fb85f879
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SHA1
72e064dc54e07262f34c2c80ca4f0855d893817a
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SHA256
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe
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SHA512
4f0215560d1c37fc5c54921099ea18e41cdf73d3dbc98927f424a13c2905d02a6f060581a9e0589210456077e5a23ed4fd6fd1854d2cfa5f70325885f0f744a3
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SSDEEP
3072:8vWq9BylhWz4dSXiei87VmTOakmo0SykjTlpP0fsfCGZ5Ffy6Jp4bo6:8uZCzySXZbMsmo0GDPKsfCD6Jp4
Static task
static1
Behavioral task
behavioral1
Sample
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe_JC.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe_JC.exe
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Size
238KB
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MD5
51ffe610f2d2622d296524c8fb85f879
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SHA1
72e064dc54e07262f34c2c80ca4f0855d893817a
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SHA256
df050e76b4d3cfb9a43d67ef1359ac8f98697ad987dbf3602f35e62a77144cfe
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SHA512
4f0215560d1c37fc5c54921099ea18e41cdf73d3dbc98927f424a13c2905d02a6f060581a9e0589210456077e5a23ed4fd6fd1854d2cfa5f70325885f0f744a3
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SSDEEP
3072:8vWq9BylhWz4dSXiei87VmTOakmo0SykjTlpP0fsfCGZ5Ffy6Jp4bo6:8uZCzySXZbMsmo0GDPKsfCD6Jp4
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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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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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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