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General
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Target
2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock
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Size
117KB
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Sample
240329-c1mz6sfh83
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MD5
13f6d8509b9986f60aaa5d2651a02594
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SHA1
92dfc39cb34688bee66f7b28649b79c3f7903bd0
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SHA256
868755a7eda59a0b5db15a58df3cdc78c6dec111e28c76a6928eb4ef3df7cafb
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SHA512
b42886a64e5a07bdcb9c9086bedffea02941b6d73aeb3856a4a1b0800e400401b639f94be53aef9e991c0ae506fd819747f0e4ce5c93f5bb4751d695cda9bb02
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SSDEEP
3072:0HQdeI28ZZtEAJLj64a0FSs6o4NnVrrAUUQ/iC9:HeItZnjVFN6oaVrAUB/d9
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-29_13f6d8509b9986f60aaa5d2651a02594_virlock
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Size
117KB
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MD5
13f6d8509b9986f60aaa5d2651a02594
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SHA1
92dfc39cb34688bee66f7b28649b79c3f7903bd0
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SHA256
868755a7eda59a0b5db15a58df3cdc78c6dec111e28c76a6928eb4ef3df7cafb
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SHA512
b42886a64e5a07bdcb9c9086bedffea02941b6d73aeb3856a4a1b0800e400401b639f94be53aef9e991c0ae506fd819747f0e4ce5c93f5bb4751d695cda9bb02
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SSDEEP
3072:0HQdeI28ZZtEAJLj64a0FSs6o4NnVrrAUUQ/iC9:HeItZnjVFN6oaVrAUB/d9
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (81) 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