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General
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Target
2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock
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Size
138KB
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Sample
240415-kcd2csac78
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MD5
748f42470b3dfdf0272bf821ee3c59c7
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SHA1
11e1bf1b8d7c8bc0f7f1f4cd96096ec163119cae
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SHA256
df61cc0d6f815725dd58ef09c617ed92a5dd94ad4d7614d1b4bfd8cd63f171fe
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SHA512
683ab227a50bd7bfeb395bfdbb2fb422d9db572e7ad379ed3e0d0e221e28d0708b6eba08d37f325f0f4835fd8e943b21a6dbb76e552f006c66ca2643bede91b3
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SSDEEP
3072:noDaOr6Ey73oPTC1WVZxkcSHEGb3gDoFrkd2DQUDaxU/:noDaOrRg3oPyWFkcSHDQDo1DJmW/
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock.exe
Resource
win10v2004-20240412-en
Malware Config
Targets
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Target
2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock
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Size
138KB
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MD5
748f42470b3dfdf0272bf821ee3c59c7
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SHA1
11e1bf1b8d7c8bc0f7f1f4cd96096ec163119cae
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SHA256
df61cc0d6f815725dd58ef09c617ed92a5dd94ad4d7614d1b4bfd8cd63f171fe
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SHA512
683ab227a50bd7bfeb395bfdbb2fb422d9db572e7ad379ed3e0d0e221e28d0708b6eba08d37f325f0f4835fd8e943b21a6dbb76e552f006c66ca2643bede91b3
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SSDEEP
3072:noDaOr6Ey73oPTC1WVZxkcSHEGb3gDoFrkd2DQUDaxU/:noDaOrRg3oPyWFkcSHDQDo1DJmW/
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (93) 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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Deletes itself
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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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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