General
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Target
2024-01-25_bdf019ffcdfb81431f1de090fbb129b2_virlock
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Size
254KB
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Sample
240125-v66ctabgg8
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MD5
bdf019ffcdfb81431f1de090fbb129b2
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SHA1
f0cf9945a14c5639ccda952a70ed1951d1c7a802
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SHA256
fee99bef28dadf631c33fd973e31e4b0860a14aa3301d1b42169e87f4b93db44
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SHA512
806fd77414e129aebe2e90e888ec8d570f60d3eaada1ad8bc5b7ca1493b9f17126cc96bb7490e8f30bf4fd78ca6dac10acf3119eff8881fee12437f2e3e87216
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SSDEEP
3072:b6JNKoLXusuaFAwbxy9AxJTWT1CHFpGWcZprs/xjPKX58AgyQvBS:WJNesuanw9UpWBCzGWkFiPM7gy5
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-25_bdf019ffcdfb81431f1de090fbb129b2_virlock.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-25_bdf019ffcdfb81431f1de090fbb129b2_virlock.exe
Resource
win10v2004-20231215-en
Malware Config
Targets
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Target
2024-01-25_bdf019ffcdfb81431f1de090fbb129b2_virlock
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Size
254KB
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MD5
bdf019ffcdfb81431f1de090fbb129b2
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SHA1
f0cf9945a14c5639ccda952a70ed1951d1c7a802
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SHA256
fee99bef28dadf631c33fd973e31e4b0860a14aa3301d1b42169e87f4b93db44
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SHA512
806fd77414e129aebe2e90e888ec8d570f60d3eaada1ad8bc5b7ca1493b9f17126cc96bb7490e8f30bf4fd78ca6dac10acf3119eff8881fee12437f2e3e87216
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SSDEEP
3072:b6JNKoLXusuaFAwbxy9AxJTWT1CHFpGWcZprs/xjPKX58AgyQvBS:WJNesuanw9UpWBCzGWkFiPM7gy5
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Modifies visibility of file extensions in Explorer
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Renames multiple (85) 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