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General
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Target
2024-10-21_1be1108c686fccbdbebcc8c7c069d75a_virlock
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Size
721KB
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Sample
241021-a28xxs1flr
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MD5
1be1108c686fccbdbebcc8c7c069d75a
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SHA1
1c4c98ea727b5ad7ebb2395cd0d121a52632f2ef
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SHA256
bc114cfc7a267585233b1fa18303f6c37b9331d80454a43c6fea145cd2cb2880
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SHA512
cd1c1dcfd6231ae139e8882ea54131bc96ccb8c1621d01ba078788d4e0000d1df512761f506be7451a1fd425f205b67c5d9ad9d0e9c7437ae65984c6a7d8f5fa
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SSDEEP
3072:Axt7KvD2HC97Tuy4+VWo3wJ/LQp/cJ8AaTam5P4Z:Ms2H+uy4EW6Q2/u8Aw5Q
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-21_1be1108c686fccbdbebcc8c7c069d75a_virlock.exe
Resource
win7-20240903-en
Malware Config
Targets
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Target
2024-10-21_1be1108c686fccbdbebcc8c7c069d75a_virlock
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Size
721KB
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MD5
1be1108c686fccbdbebcc8c7c069d75a
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SHA1
1c4c98ea727b5ad7ebb2395cd0d121a52632f2ef
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SHA256
bc114cfc7a267585233b1fa18303f6c37b9331d80454a43c6fea145cd2cb2880
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SHA512
cd1c1dcfd6231ae139e8882ea54131bc96ccb8c1621d01ba078788d4e0000d1df512761f506be7451a1fd425f205b67c5d9ad9d0e9c7437ae65984c6a7d8f5fa
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SSDEEP
3072:Axt7KvD2HC97Tuy4+VWo3wJ/LQp/cJ8AaTam5P4Z:Ms2H+uy4EW6Q2/u8Aw5Q
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Modifies visibility of file extensions in Explorer
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Renames multiple (61) 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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1