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General
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Target
file
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Size
269KB
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Sample
231119-25g26ace48
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MD5
64d9eaeaa490b8129014dda174fecdd4
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SHA1
eb80c0e3a20600527bbe405f008d998de58e45b8
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SHA256
ca63ebea3ecd1099004b38c13cd7617ea556d18dadd749102b6e837cff9ebf0e
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SHA512
a53e24f8fcecff6668d43a55e277187d193a940f7c7274fa5263712d475e96399a484ca4148701379df33177efc2eeb9b5ea9f20d47ec67458ef7575f5f2d3ec
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SSDEEP
3072:dNsekaqWDp1O92TAAm7qMtUi22rRzAevI1M3KkfyBswJchRW0r7ovbeBV:wDa3LOI3i22Vzhf3Vq0PM
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231023-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
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Size
269KB
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MD5
64d9eaeaa490b8129014dda174fecdd4
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SHA1
eb80c0e3a20600527bbe405f008d998de58e45b8
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SHA256
ca63ebea3ecd1099004b38c13cd7617ea556d18dadd749102b6e837cff9ebf0e
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SHA512
a53e24f8fcecff6668d43a55e277187d193a940f7c7274fa5263712d475e96399a484ca4148701379df33177efc2eeb9b5ea9f20d47ec67458ef7575f5f2d3ec
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SSDEEP
3072:dNsekaqWDp1O92TAAm7qMtUi22rRzAevI1M3KkfyBswJchRW0r7ovbeBV:wDa3LOI3i22Vzhf3Vq0PM
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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