General
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Target
2024-05-25_584caa933eaaebb610180589cd55a61a_virlock
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Size
255KB
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Sample
240525-pl6vysah31
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MD5
584caa933eaaebb610180589cd55a61a
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SHA1
aa1cace7545eacac38362eeaf030bdf1482aafe3
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SHA256
ea6004f5e89bf65119bbc7e86f6782a08f314a1f5b30becc86c770ec4a0213ef
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SHA512
19ee017af62c5c92d7caac5babb6639dd1dc3978cbd8b57a99bbc1ef2e87e6a945533bc7cf98c31d5181ebdc90da2839d47fb5e2379a71dd78539bbbac019eb6
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SSDEEP
3072:Pl74K1R8ooXfCA9YIbqvphtMGC1qBvbo+ySDEtBu4Eoe2YFx4cqAVzsPHe:Nn8RvCwYtVMGCaoB7EF2YKAVzsPH
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-25_584caa933eaaebb610180589cd55a61a_virlock.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-25_584caa933eaaebb610180589cd55a61a_virlock.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
2024-05-25_584caa933eaaebb610180589cd55a61a_virlock
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Size
255KB
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MD5
584caa933eaaebb610180589cd55a61a
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SHA1
aa1cace7545eacac38362eeaf030bdf1482aafe3
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SHA256
ea6004f5e89bf65119bbc7e86f6782a08f314a1f5b30becc86c770ec4a0213ef
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SHA512
19ee017af62c5c92d7caac5babb6639dd1dc3978cbd8b57a99bbc1ef2e87e6a945533bc7cf98c31d5181ebdc90da2839d47fb5e2379a71dd78539bbbac019eb6
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SSDEEP
3072:Pl74K1R8ooXfCA9YIbqvphtMGC1qBvbo+ySDEtBu4Eoe2YFx4cqAVzsPHe:Nn8RvCwYtVMGCaoB7EF2YKAVzsPH
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (59) 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