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General
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Target
2024-03-04_ca253babf292ddcfd0239e16b6e84451_virlock
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Size
255KB
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Sample
240304-qn2jpacd26
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MD5
ca253babf292ddcfd0239e16b6e84451
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SHA1
c72f73a9e7dace16412324ac0fb3ebdd4ef35016
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SHA256
3aba7a642a1c3c828f12dd1e09c2e5cc782985cf6a6a14727236e6af4552cd48
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SHA512
524d84929483d13e838e33a2c5c29440cd45afbd3c67270ec89796c3bc2f1f33a692278767644a3fb03d97b49561b17c81318d2a396d9bb3663f088c2052d8f8
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SSDEEP
6144:XH0wzxZKiPCeuHQ9B6I7ZWZpH0v+LwhcwCBUJn:Xx9Z1PSHQ9B6I7Uh02LwOBEn
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-04_ca253babf292ddcfd0239e16b6e84451_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-04_ca253babf292ddcfd0239e16b6e84451_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-04_ca253babf292ddcfd0239e16b6e84451_virlock
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Size
255KB
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MD5
ca253babf292ddcfd0239e16b6e84451
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SHA1
c72f73a9e7dace16412324ac0fb3ebdd4ef35016
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SHA256
3aba7a642a1c3c828f12dd1e09c2e5cc782985cf6a6a14727236e6af4552cd48
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SHA512
524d84929483d13e838e33a2c5c29440cd45afbd3c67270ec89796c3bc2f1f33a692278767644a3fb03d97b49561b17c81318d2a396d9bb3663f088c2052d8f8
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SSDEEP
6144:XH0wzxZKiPCeuHQ9B6I7ZWZpH0v+LwhcwCBUJn:Xx9Z1PSHQ9B6I7Uh02LwOBEn
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (88) 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