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General
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Target
2024-04-16_f003a9f94356657b3b1023a0edc407b0_virlock
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Size
585KB
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Sample
240416-lpzz2aef87
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MD5
f003a9f94356657b3b1023a0edc407b0
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SHA1
aa8dca5fe73d8a15dce62b561903c0e3993a96f7
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SHA256
6f6baa0c585ad994924a6d142cdd7bdaa4c728b51d0f1ca8a333e40b1102f400
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SHA512
e97a59a2b34297c7336e30714cd53877434072e7022dfd6c8ec9c7a4e2592a6a833c717de2801969d8c54a5bcf32f2d0dc4b3b4bf6bcca8bf41198b5b420bb32
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SSDEEP
12288:/6YfGofmSbK6zs5JDkfX+2xcXC++IIUfnfzNmqveI:/aofmSbKo6YfXTcXD+IIUHnve
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-16_f003a9f94356657b3b1023a0edc407b0_virlock.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-16_f003a9f94356657b3b1023a0edc407b0_virlock.exe
Resource
win10v2004-20240412-en
Malware Config
Targets
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Target
2024-04-16_f003a9f94356657b3b1023a0edc407b0_virlock
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Size
585KB
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MD5
f003a9f94356657b3b1023a0edc407b0
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SHA1
aa8dca5fe73d8a15dce62b561903c0e3993a96f7
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SHA256
6f6baa0c585ad994924a6d142cdd7bdaa4c728b51d0f1ca8a333e40b1102f400
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SHA512
e97a59a2b34297c7336e30714cd53877434072e7022dfd6c8ec9c7a4e2592a6a833c717de2801969d8c54a5bcf32f2d0dc4b3b4bf6bcca8bf41198b5b420bb32
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SSDEEP
12288:/6YfGofmSbK6zs5JDkfX+2xcXC++IIUfnfzNmqveI:/aofmSbKo6YfXTcXD+IIUHnve
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (85) 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