General
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Target
2024-04-07_29df57be6e75f670b1d223ce4733a587_virlock
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Size
189KB
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Sample
240407-x7azeacc6z
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MD5
29df57be6e75f670b1d223ce4733a587
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SHA1
923c4577613d4c3eb816400141d73d486a7da36c
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SHA256
fa3fa87588ae7afe00e7b465e7208973c217aaf395288bbce0ff2d4ecb0fd597
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SHA512
07467b478ae80d2b8e910fd2461461b619ef5a462ff8594a0d7bf0711fc4b07c3d3546d77093c872628ff9b556d39eae42e4817c6d3a124b2c0115bb7f0348ee
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SSDEEP
3072:3cuMtawMlIJNVwLrd+yNoyykZG3oZ6oUkpLOqpvszcqOSXBxfdik8SWoHT4Vs:3chta3ECLrNyt3oslx4SXHMk82Ys
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-07_29df57be6e75f670b1d223ce4733a587_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-07_29df57be6e75f670b1d223ce4733a587_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-07_29df57be6e75f670b1d223ce4733a587_virlock
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Size
189KB
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MD5
29df57be6e75f670b1d223ce4733a587
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SHA1
923c4577613d4c3eb816400141d73d486a7da36c
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SHA256
fa3fa87588ae7afe00e7b465e7208973c217aaf395288bbce0ff2d4ecb0fd597
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SHA512
07467b478ae80d2b8e910fd2461461b619ef5a462ff8594a0d7bf0711fc4b07c3d3546d77093c872628ff9b556d39eae42e4817c6d3a124b2c0115bb7f0348ee
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SSDEEP
3072:3cuMtawMlIJNVwLrd+yNoyykZG3oZ6oUkpLOqpvszcqOSXBxfdik8SWoHT4Vs:3chta3ECLrNyt3oslx4SXHMk82Ys
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