General
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Target
file.exe
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Size
256KB
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Sample
231106-radq5sbe8x
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MD5
94a63411716991d1482cc6f34f8dd798
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SHA1
1138e285ad1b5d39cc038a857c096544547783e3
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SHA256
17b60ee2f89777c9dc8694d8098f7082590633459075bbed7108b578449a3c72
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SHA512
5740be4caf1266ecf6e27032b0db7545948e92e8c4d9b2fe84805bef044db30356fe8ee1d8bd35e73b40325eb944251dfe1ce12ddbdc3bb2f08e1b3d05652334
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SSDEEP
3072:s6zOCAjl7dCU+R39XFkH6xwYigUrJopWco2o0W5BTrL8i6GOa0yLe7oGOUZ:s6al7dZ+nGH6xtLp/o2sPL8i6G0yK7o
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231020-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
file.exe
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Size
256KB
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MD5
94a63411716991d1482cc6f34f8dd798
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SHA1
1138e285ad1b5d39cc038a857c096544547783e3
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SHA256
17b60ee2f89777c9dc8694d8098f7082590633459075bbed7108b578449a3c72
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SHA512
5740be4caf1266ecf6e27032b0db7545948e92e8c4d9b2fe84805bef044db30356fe8ee1d8bd35e73b40325eb944251dfe1ce12ddbdc3bb2f08e1b3d05652334
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SSDEEP
3072:s6zOCAjl7dCU+R39XFkH6xwYigUrJopWco2o0W5BTrL8i6GOa0yLe7oGOUZ:s6al7dZ+nGH6xtLp/o2sPL8i6G0yK7o
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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