General
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Target
2024-04-03_d34cdff3b0e698bb896329c25e0cf5b3_virlock
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Size
710KB
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Sample
240403-xkfw5saa42
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MD5
d34cdff3b0e698bb896329c25e0cf5b3
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SHA1
c5347180f1d3207d8d48f480dd7539ae347a7cdf
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SHA256
a1fe19a6f8e7118773f8ed982e88ded4bb2e161503ad41428e7c99245d79ae35
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SHA512
65f8d46ade43c55e484ac05333fde2f817c4ecbf658e0690c88731a98e62940470dd7e18a434e860bc31232c6aa388ee2aa4262302ff2d076ad9fd97a73fc79a
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SSDEEP
12288:M+/pTJKEfDggggggg2ONjNRtoUepm93UOsLma7boUIeAnY87fUWHy:txkiDgggggggR5NWQ9kJ6a7bonz7fA
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-03_d34cdff3b0e698bb896329c25e0cf5b3_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-03_d34cdff3b0e698bb896329c25e0cf5b3_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-03_d34cdff3b0e698bb896329c25e0cf5b3_virlock
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Size
710KB
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MD5
d34cdff3b0e698bb896329c25e0cf5b3
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SHA1
c5347180f1d3207d8d48f480dd7539ae347a7cdf
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SHA256
a1fe19a6f8e7118773f8ed982e88ded4bb2e161503ad41428e7c99245d79ae35
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SHA512
65f8d46ade43c55e484ac05333fde2f817c4ecbf658e0690c88731a98e62940470dd7e18a434e860bc31232c6aa388ee2aa4262302ff2d076ad9fd97a73fc79a
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SSDEEP
12288:M+/pTJKEfDggggggg2ONjNRtoUepm93UOsLma7boUIeAnY87fUWHy:txkiDgggggggR5NWQ9kJ6a7bonz7fA
Score10/10-
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