General
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Target
tofsee.exe
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Size
12.3MB
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Sample
250116-t968vayrgs
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MD5
25d2b9e890383de8e4c54531aec432dd
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SHA1
ccaa3021da481652aa28104eeb8af59a2ebb7ac7
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SHA256
50c458863b680d4b1c852fe9b6367c9a1fd6008ba4bd149f08ea71c8b06c2cb6
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SHA512
452991b58c1ef0d52f1971771a4fe01ce85dee5ee23d59adfdec703df4f5ec76a691fd6b4d3cd88a93736c14a886bd1df8825360efad8e2c99595dc4a4d3feb4
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SSDEEP
6144:peeISXLAQ4G5g0RVOppo6xI4JbDva0uRjMgUgWWWWWWWWWWWWWWWWWWWWWWWWWWn:pzbXMG5goCfDva5RQg
Static task
static1
Behavioral task
behavioral1
Sample
tofsee.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
tofsee.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
tofsee
svartalfheim.top
jotunheim.name
Targets
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Target
tofsee.exe
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Size
12.3MB
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MD5
25d2b9e890383de8e4c54531aec432dd
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SHA1
ccaa3021da481652aa28104eeb8af59a2ebb7ac7
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SHA256
50c458863b680d4b1c852fe9b6367c9a1fd6008ba4bd149f08ea71c8b06c2cb6
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SHA512
452991b58c1ef0d52f1971771a4fe01ce85dee5ee23d59adfdec703df4f5ec76a691fd6b4d3cd88a93736c14a886bd1df8825360efad8e2c99595dc4a4d3feb4
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SSDEEP
6144:peeISXLAQ4G5g0RVOppo6xI4JbDva0uRjMgUgWWWWWWWWWWWWWWWWWWWWWWWWWWn:pzbXMG5goCfDva5RQg
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Tofsee family
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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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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
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
2Disable or Modify System Firewall
1Disable or Modify Tools
1Modify Registry
2