General
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Target
2024-04-26_c8fbe2d8a87f12cef733ee91ffb26ffd_virlock
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Size
140KB
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Sample
240426-eeq6tahf97
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MD5
c8fbe2d8a87f12cef733ee91ffb26ffd
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SHA1
a026c105ae9457a67fe05dca3f0e969956a0104e
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SHA256
3199f688934514e4ea8606e4b4f75b2950364915f742031db8b8c92b94ca081e
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SHA512
c61d0c953341403decdee56785e3f7cfb3bb738732607b2c8b1d3db7eee3e96e04ffc7bc1ebd7e72c00e700dde0906fda1ee81623b5b66213f1eba79d7cd9d9e
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SSDEEP
3072:yVUnFL+ieaauAbUBAk3gccXsD/TN5BMGJDGUNBgd6nT4g/zVc9SL4CbIma7yCClP:yVUnB+3ZWCKBYuT4gRZ4CUmMyCClr4q
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-26_c8fbe2d8a87f12cef733ee91ffb26ffd_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-26_c8fbe2d8a87f12cef733ee91ffb26ffd_virlock.exe
Resource
win10v2004-20240412-en
Malware Config
Targets
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Target
2024-04-26_c8fbe2d8a87f12cef733ee91ffb26ffd_virlock
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Size
140KB
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MD5
c8fbe2d8a87f12cef733ee91ffb26ffd
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SHA1
a026c105ae9457a67fe05dca3f0e969956a0104e
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SHA256
3199f688934514e4ea8606e4b4f75b2950364915f742031db8b8c92b94ca081e
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SHA512
c61d0c953341403decdee56785e3f7cfb3bb738732607b2c8b1d3db7eee3e96e04ffc7bc1ebd7e72c00e700dde0906fda1ee81623b5b66213f1eba79d7cd9d9e
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SSDEEP
3072:yVUnFL+ieaauAbUBAk3gccXsD/TN5BMGJDGUNBgd6nT4g/zVc9SL4CbIma7yCClP:yVUnB+3ZWCKBYuT4gRZ4CUmMyCClr4q
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (80) 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 Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1