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General
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Target
file
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Size
247KB
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Sample
231012-q3rm2aeg25
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MD5
db0915efc5df3cca31e05b8b3ac0f5ee
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SHA1
6d25d1ba8cc8716b6c9f40d6fc998b174418c2bb
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SHA256
344cdf9460d4d63a1cd728f6edaaf15cdbd540058dc8cb5a48a059a380fe21a4
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SHA512
86126487cd2d78a82e284922eb187280123506d5c9a875c1178f5b35e28784d72507baefcb662061eb20b4ff8633634dd47f251bf93e46707981d91814d55433
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SSDEEP
3072:ufniykEWHMXNrACbZ6rDLrBoVDf78BOIKWwtY1:ekEWH+JDbZ6SIOOwt
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
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Size
247KB
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MD5
db0915efc5df3cca31e05b8b3ac0f5ee
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SHA1
6d25d1ba8cc8716b6c9f40d6fc998b174418c2bb
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SHA256
344cdf9460d4d63a1cd728f6edaaf15cdbd540058dc8cb5a48a059a380fe21a4
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SHA512
86126487cd2d78a82e284922eb187280123506d5c9a875c1178f5b35e28784d72507baefcb662061eb20b4ff8633634dd47f251bf93e46707981d91814d55433
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SSDEEP
3072:ufniykEWHMXNrACbZ6rDLrBoVDf78BOIKWwtY1:ekEWH+JDbZ6SIOOwt
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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