General
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Target
75f8f5550a8422f1b3b5bffac0194314.bin
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Size
154KB
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Sample
231006-b4grwsge2v
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MD5
42e2f36e58e31aa39f46639e6eef303f
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SHA1
b4fb832a139db11da1b699920d6eae148faf9b2b
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SHA256
d1a226c6e635ec5e5424ae0dbbe6e1831a272e213985d811c85c1bc9582656c7
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SHA512
a37b3abf363f867d1cf9e4417890a538b3fbd90111218d6479cc8da2bbef5f3567496bfe107badd57521ce58cf7664c0d1521b30e534c3af9812c927203ee615
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SSDEEP
3072:K1SVaaW4ZCD5/Feubs4f6xFLh99Ii8X2aGwQj/Z/Qj56uHz:K4Vq/FW4SzFEB2DjRwBT
Static task
static1
Behavioral task
behavioral1
Sample
2862ceab031067e29a8c1b352d9655928866081f2401e6f20ca6be3700571713.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2862ceab031067e29a8c1b352d9655928866081f2401e6f20ca6be3700571713.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
2862ceab031067e29a8c1b352d9655928866081f2401e6f20ca6be3700571713.exe
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Size
217KB
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MD5
75f8f5550a8422f1b3b5bffac0194314
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SHA1
e69a5158ec792c5a9515aa7bf72660cdb9ad6e54
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SHA256
2862ceab031067e29a8c1b352d9655928866081f2401e6f20ca6be3700571713
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SHA512
3e848495367f87d6d0f4c87aece52612aa983ce535ea8aea7a1e6303c0f92444b412047e8eefa60211aca27bfec110f5a24d222470b858a5203068b4d203c7e4
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SSDEEP
3072:ewXzCJfAAfa/tXLVP02T4RhOkx1KNIHgX5RG+t87hX9:7Opf2tXL8hOkAy+
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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