General
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Target
file
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Size
351KB
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Sample
230416-1xcxssdh4t
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MD5
ef79d6bacf2589c7826c45c2c759ef97
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SHA1
8568e58f607d82e955575bca5fe9c5a81e95affa
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SHA256
544dea0e331e8457342d189dd590f1b87413239d33f428873f9d5787cd28add6
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SHA512
afe0c8c9bc9ed00cceb6bbef8fbd5ba1a9433ffed43f9779220641cb654b2c93d9b08e4cbaf8bdfb48a58a74f3233c8d98cb4ad173baaf578e64670fde6564fb
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SSDEEP
6144:NHA+7C2MsWeqBLTKhC8jsofrVd8qgy8Iak82:NHl7FMfeqBL18XTVqpy
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
file
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Size
351KB
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MD5
ef79d6bacf2589c7826c45c2c759ef97
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SHA1
8568e58f607d82e955575bca5fe9c5a81e95affa
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SHA256
544dea0e331e8457342d189dd590f1b87413239d33f428873f9d5787cd28add6
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SHA512
afe0c8c9bc9ed00cceb6bbef8fbd5ba1a9433ffed43f9779220641cb654b2c93d9b08e4cbaf8bdfb48a58a74f3233c8d98cb4ad173baaf578e64670fde6564fb
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SSDEEP
6144:NHA+7C2MsWeqBLTKhC8jsofrVd8qgy8Iak82:NHl7FMfeqBL18XTVqpy
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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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