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General
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Target
2024-04-06_918aa9486825f491eacb4cbc5151179d_virlock
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Size
134KB
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Sample
240406-rvh7csda33
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MD5
918aa9486825f491eacb4cbc5151179d
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SHA1
bf96712d595d3a4690a6a4f903441925538d7bcd
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SHA256
03fe2b3299b137ad14a7764b20a00189a53b501a849c34a5a6aad99214869ee6
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SHA512
6cb475c7cf85d1505f3b410d84f573b7eea4e7b152b0aaa65b100b0aa37f1bc7883ac31c7268488ef61db66c87996bb13f15fab830a2913cd545aa4ad8ed8a07
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SSDEEP
3072:L3D8ZkcR9JjFs4SmEBRrs6Tdgd1H9n4qeCntSlk:3eR3JjS4PEL4Md+1dn4PUwO
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-06_918aa9486825f491eacb4cbc5151179d_virlock.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-06_918aa9486825f491eacb4cbc5151179d_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-06_918aa9486825f491eacb4cbc5151179d_virlock
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Size
134KB
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MD5
918aa9486825f491eacb4cbc5151179d
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SHA1
bf96712d595d3a4690a6a4f903441925538d7bcd
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SHA256
03fe2b3299b137ad14a7764b20a00189a53b501a849c34a5a6aad99214869ee6
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SHA512
6cb475c7cf85d1505f3b410d84f573b7eea4e7b152b0aaa65b100b0aa37f1bc7883ac31c7268488ef61db66c87996bb13f15fab830a2913cd545aa4ad8ed8a07
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SSDEEP
3072:L3D8ZkcR9JjFs4SmEBRrs6Tdgd1H9n4qeCntSlk:3eR3JjS4PEL4Md+1dn4PUwO
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (58) 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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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