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General
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Target
file.exe
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Size
208KB
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Sample
231004-lkb3eaaf2z
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MD5
711979d0ba9c7d2404ab1f1ce2b2f659
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SHA1
d79bbfdc8819df8bde19d8421e5d431ece79d516
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SHA256
b0630ed90cf85b1628028e32adce8cfbdfdc2036dd82387bd053104480af3e18
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SHA512
9432eda4ecb4cdf24228b56d6e7955a833fc81e8af14e736a2a36492acd2ae0bdcfeb6c10191caa86c557d3401718873a1939569046a7968cf17aace35f9e702
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SSDEEP
3072:PX9oJTf5hxPsEiohwR8kW6eypJahlL2rdg7q59N4NOmS5oqft8Ih:PGf5DEDoh1kRPPahaZu4mqf
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.exe
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Size
208KB
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MD5
711979d0ba9c7d2404ab1f1ce2b2f659
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SHA1
d79bbfdc8819df8bde19d8421e5d431ece79d516
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SHA256
b0630ed90cf85b1628028e32adce8cfbdfdc2036dd82387bd053104480af3e18
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SHA512
9432eda4ecb4cdf24228b56d6e7955a833fc81e8af14e736a2a36492acd2ae0bdcfeb6c10191caa86c557d3401718873a1939569046a7968cf17aace35f9e702
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SSDEEP
3072:PX9oJTf5hxPsEiohwR8kW6eypJahlL2rdg7q59N4NOmS5oqft8Ih:PGf5DEDoh1kRPPahaZu4mqf
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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