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General
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Target
2024-10-12_b5ac65d60abc7e3755baabd4c52a84bf_virlock
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Size
641KB
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Sample
241012-s6ylvsxhqb
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MD5
b5ac65d60abc7e3755baabd4c52a84bf
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SHA1
5b1f017fba9cb80c81bcff120839e75a7ca417f8
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SHA256
f2114157b16b68106d40ada18be13b03dd443419637e39f0917229457e6b7369
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SHA512
5f02fef6d6f7dd20178c54b8c838e21dea62d0ce4c6bdbacc31518b20f0cb76c4fe9c232e83cfd65361e5800b3912ef655a357911b0bc0911f96ec076d2900d6
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SSDEEP
12288:0coFOJwPXuXncHAhiFyrXDbvJoM6CmIYdGylDClKE8wr/ftyz/0EPdsC:0cWEZh1bvJoP8YHDClxRbFyz8EPdh
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-12_b5ac65d60abc7e3755baabd4c52a84bf_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-12_b5ac65d60abc7e3755baabd4c52a84bf_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-10-12_b5ac65d60abc7e3755baabd4c52a84bf_virlock
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Size
641KB
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MD5
b5ac65d60abc7e3755baabd4c52a84bf
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SHA1
5b1f017fba9cb80c81bcff120839e75a7ca417f8
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SHA256
f2114157b16b68106d40ada18be13b03dd443419637e39f0917229457e6b7369
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SHA512
5f02fef6d6f7dd20178c54b8c838e21dea62d0ce4c6bdbacc31518b20f0cb76c4fe9c232e83cfd65361e5800b3912ef655a357911b0bc0911f96ec076d2900d6
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SSDEEP
12288:0coFOJwPXuXncHAhiFyrXDbvJoM6CmIYdGylDClKE8wr/ftyz/0EPdsC:0cWEZh1bvJoP8YHDClxRbFyz8EPdh
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1