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General
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Target
file
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Size
225KB
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Sample
231011-xna53afd8s
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MD5
6546844f130e761aeb34029466409553
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SHA1
0aeb09a39e97d2526fe8ff8467129c8b48506fef
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SHA256
8d5bd2b247ca7d188c082e08e7a90034110482919e7b737b838c6dade6b4d644
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SHA512
1223795b2ec6a6410f943a21d4f8c03dc31792f3ea19407ed2cdbefa24b5373a2f9dd5b4103c71c065b19d7243733fab1390f6972eb15e2a32f56a98146b546e
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SSDEEP
3072:3X5VL2484h6kCiEjjPv1S9Q7QikIPXV9tEnYufioL26FzYxL5yMzuTy:n/Nh67iEjjkQMWbufs0eUMyT
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
225KB
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MD5
6546844f130e761aeb34029466409553
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SHA1
0aeb09a39e97d2526fe8ff8467129c8b48506fef
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SHA256
8d5bd2b247ca7d188c082e08e7a90034110482919e7b737b838c6dade6b4d644
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SHA512
1223795b2ec6a6410f943a21d4f8c03dc31792f3ea19407ed2cdbefa24b5373a2f9dd5b4103c71c065b19d7243733fab1390f6972eb15e2a32f56a98146b546e
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SSDEEP
3072:3X5VL2484h6kCiEjjPv1S9Q7QikIPXV9tEnYufioL26FzYxL5yMzuTy:n/Nh67iEjjkQMWbufs0eUMyT
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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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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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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