General
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Target
2024-04-03_2654b33a18d9a692515f7b0b1fee79ed_virlock
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Size
188KB
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Sample
240403-w6k8bahd66
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MD5
2654b33a18d9a692515f7b0b1fee79ed
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SHA1
ba9ff62d1e2f1e06616aee98942fa70d797bbdd1
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SHA256
5d9b42712df611c6a017f46359523aeb117c136bdfe73613a29cb62306027a50
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SHA512
85557045d145df48e4f7a6812c59724b58a31d0216a909febe8a771570156270f4b6af9eb5164f0639cb5005865c722a9e2b61a93415f2665a7292f458619b4d
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SSDEEP
3072:/vS5a7fRMjVOaG5F7qOEwRmg0HKvTfDahQ23XoG7bA/Zvq/FdqXik:/vS52fRMjVOaSq/+70uTLa+gbGZC/FMx
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-03_2654b33a18d9a692515f7b0b1fee79ed_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-03_2654b33a18d9a692515f7b0b1fee79ed_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-03_2654b33a18d9a692515f7b0b1fee79ed_virlock
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Size
188KB
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MD5
2654b33a18d9a692515f7b0b1fee79ed
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SHA1
ba9ff62d1e2f1e06616aee98942fa70d797bbdd1
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SHA256
5d9b42712df611c6a017f46359523aeb117c136bdfe73613a29cb62306027a50
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SHA512
85557045d145df48e4f7a6812c59724b58a31d0216a909febe8a771570156270f4b6af9eb5164f0639cb5005865c722a9e2b61a93415f2665a7292f458619b4d
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SSDEEP
3072:/vS5a7fRMjVOaG5F7qOEwRmg0HKvTfDahQ23XoG7bA/Zvq/FdqXik:/vS52fRMjVOaSq/+70uTLa+gbGZC/FMx
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (57) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1