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General
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Target
2024-04-22_09bf3f42a75392e9189c3c525d2d73b4_virlock
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Size
235KB
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Sample
240422-bt8smadf44
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MD5
09bf3f42a75392e9189c3c525d2d73b4
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SHA1
a7b823440b5ac4a29f4e7a879d206a5afe122392
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SHA256
b0060eb3e956e601273b46efb59ae907457df14bece47eb63399ce361ce80966
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SHA512
60e0e8e4598f32b70f21633ba6bc9eaeaa11c59b9f5bd024cea4f306c4270d003d0890a0d62e36edf41db99fac7ecb0d0ce21508da7d89f8145d96689180aa13
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SSDEEP
3072:ZaNQ+911lN+qSVi1gzyD5H+XVgWrjFyNPJLZCeA1q/Oo2Yisga0/Gwj93J0yiUAn:klGqHqe4SAZedMN82Y+a05j932h3VEvE
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-22_09bf3f42a75392e9189c3c525d2d73b4_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-22_09bf3f42a75392e9189c3c525d2d73b4_virlock.exe
Resource
win10v2004-20240412-en
Malware Config
Targets
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Target
2024-04-22_09bf3f42a75392e9189c3c525d2d73b4_virlock
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Size
235KB
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MD5
09bf3f42a75392e9189c3c525d2d73b4
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SHA1
a7b823440b5ac4a29f4e7a879d206a5afe122392
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SHA256
b0060eb3e956e601273b46efb59ae907457df14bece47eb63399ce361ce80966
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SHA512
60e0e8e4598f32b70f21633ba6bc9eaeaa11c59b9f5bd024cea4f306c4270d003d0890a0d62e36edf41db99fac7ecb0d0ce21508da7d89f8145d96689180aa13
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SSDEEP
3072:ZaNQ+911lN+qSVi1gzyD5H+XVgWrjFyNPJLZCeA1q/Oo2Yisga0/Gwj93J0yiUAn:klGqHqe4SAZedMN82Y+a05j932h3VEvE
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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Blocklisted process makes network request
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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