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General
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Target
2024-03-13_e9633438e807624d5befa71903f1b54b_virlock
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Size
138KB
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Sample
240313-jkw2gahh53
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MD5
e9633438e807624d5befa71903f1b54b
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SHA1
c8a377d0459db18a999c814ed67384d7291f66e9
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SHA256
fd7519c5a8ce2d5441e1d2864306b7f3ab3f04c5825d61d2683d877dcdbc32d0
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SHA512
167798b5ab5cc7363d6c1a78ac1308153278ea3e13c3d0f0b9a16a7e52f1d0b144dff4e4b9f4d4d24af96601ecc09ee4a7fe2fc8a76ae883bca508dd75d1c04b
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SSDEEP
3072:sLlUivwSMHNuv/jUrDKPvAqD2odKJqA+j0XXaXBjlX1pZ/H2jPYRDTX:YobHIIvKPvAqD2odK0b0ufTpy2DT
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-13_e9633438e807624d5befa71903f1b54b_virlock.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-03-13_e9633438e807624d5befa71903f1b54b_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-13_e9633438e807624d5befa71903f1b54b_virlock
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Size
138KB
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MD5
e9633438e807624d5befa71903f1b54b
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SHA1
c8a377d0459db18a999c814ed67384d7291f66e9
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SHA256
fd7519c5a8ce2d5441e1d2864306b7f3ab3f04c5825d61d2683d877dcdbc32d0
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SHA512
167798b5ab5cc7363d6c1a78ac1308153278ea3e13c3d0f0b9a16a7e52f1d0b144dff4e4b9f4d4d24af96601ecc09ee4a7fe2fc8a76ae883bca508dd75d1c04b
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SSDEEP
3072:sLlUivwSMHNuv/jUrDKPvAqD2odKJqA+j0XXaXBjlX1pZ/H2jPYRDTX:YobHIIvKPvAqD2odK0b0ufTpy2DT
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (79) 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