General
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Target
2024-03-28_97511f0c8bedd9ecc388ebddbbadd5d2_virlock
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Size
118KB
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Sample
240328-c9zekabb57
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MD5
97511f0c8bedd9ecc388ebddbbadd5d2
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SHA1
8c524895ed54f20ada164b7856661362f7b22fda
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SHA256
b9045a2b496dfe43d3fdcb3e280d99600e4ab389badcd868fedc945397b79a5a
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SHA512
1d4377e48be83406bb275ed6d53d611726174834500213050bed05762d9d1287d2787610eaa7095a1a1c600568315b80bd28f32e559a0737354ed7871a745c3d
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SSDEEP
3072:Y3XwgoPHbiZYmzSNqZ5mWRhziVZAU0VlPDHkaePJ95AO:YXwnP7iZ9vRi/0LFePJ95
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-28_97511f0c8bedd9ecc388ebddbbadd5d2_virlock.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-03-28_97511f0c8bedd9ecc388ebddbbadd5d2_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-28_97511f0c8bedd9ecc388ebddbbadd5d2_virlock
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Size
118KB
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MD5
97511f0c8bedd9ecc388ebddbbadd5d2
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SHA1
8c524895ed54f20ada164b7856661362f7b22fda
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SHA256
b9045a2b496dfe43d3fdcb3e280d99600e4ab389badcd868fedc945397b79a5a
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SHA512
1d4377e48be83406bb275ed6d53d611726174834500213050bed05762d9d1287d2787610eaa7095a1a1c600568315b80bd28f32e559a0737354ed7871a745c3d
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SSDEEP
3072:Y3XwgoPHbiZYmzSNqZ5mWRhziVZAU0VlPDHkaePJ95AO:YXwnP7iZ9vRi/0LFePJ95
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (84) 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