General
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Target
2024-11-12_363b885a4d48aa274c8ede896f7e6512_virlock
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Size
645KB
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Sample
241112-jw1tssybpm
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MD5
363b885a4d48aa274c8ede896f7e6512
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SHA1
857f60d2a41d1dfddc474ba363c25af2620a448d
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SHA256
db0b1b978189a863b13c05c269a1da8703ad598629c1471c2ebe731da45de611
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SHA512
57989e76074eaa7ae26c2ab754729bbbc565f05afb8247f95bb659f111f1018ae06f80ecbae2b86214c44aa66245953d2b4345424b39485c5aada67791724a9c
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SSDEEP
12288:kg4kNHNCMuEWCDXoWWkBR3WA/4qYFlTdq2UkStrHq8z3TFuVhaCMc4rRcuWIaEZP:kgHduEW4XoJoWiYFh4MSYx6rmnEZoK
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-12_363b885a4d48aa274c8ede896f7e6512_virlock.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-12_363b885a4d48aa274c8ede896f7e6512_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-12_363b885a4d48aa274c8ede896f7e6512_virlock
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Size
645KB
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MD5
363b885a4d48aa274c8ede896f7e6512
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SHA1
857f60d2a41d1dfddc474ba363c25af2620a448d
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SHA256
db0b1b978189a863b13c05c269a1da8703ad598629c1471c2ebe731da45de611
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SHA512
57989e76074eaa7ae26c2ab754729bbbc565f05afb8247f95bb659f111f1018ae06f80ecbae2b86214c44aa66245953d2b4345424b39485c5aada67791724a9c
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SSDEEP
12288:kg4kNHNCMuEWCDXoWWkBR3WA/4qYFlTdq2UkStrHq8z3TFuVhaCMc4rRcuWIaEZP:kgHduEW4XoJoWiYFh4MSYx6rmnEZoK
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Modifies visibility of file extensions in Explorer
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Renames multiple (76) 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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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
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