General
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Target
file.exe
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Size
255KB
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Sample
231106-qgm3qabc7x
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MD5
86f2d42c31de6b4ed2cd10e557c9673d
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SHA1
42946e4ae31b9b8f0d24d8ad93650563a57815f3
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SHA256
896f52874ec498aba7912b3c0d313c576062349eae34916f107944672b6c3e65
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SHA512
0723caa684a2fdb027cb0172aa38c0e7a63d108f82dbea08a23c5c55875c46fc1e970ca648ce5cbe6a353421e83bb6c784b49b0d6456f9e309bdf0dc6077fcfe
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SSDEEP
3072:67A57N1mxrhd03ZHFkQa+uPia8WjAu1gWk2ffQvER5QX1zzm75Oa0ZLekoGOUZ:601mxldw2Qa+u9g6ffQcR5QtmF0ZKko
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231025-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
255KB
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MD5
86f2d42c31de6b4ed2cd10e557c9673d
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SHA1
42946e4ae31b9b8f0d24d8ad93650563a57815f3
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SHA256
896f52874ec498aba7912b3c0d313c576062349eae34916f107944672b6c3e65
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SHA512
0723caa684a2fdb027cb0172aa38c0e7a63d108f82dbea08a23c5c55875c46fc1e970ca648ce5cbe6a353421e83bb6c784b49b0d6456f9e309bdf0dc6077fcfe
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SSDEEP
3072:67A57N1mxrhd03ZHFkQa+uPia8WjAu1gWk2ffQvER5QX1zzm75Oa0ZLekoGOUZ:601mxldw2Qa+u9g6ffQcR5QtmF0ZKko
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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