General
-
Target
2024-11-22_784d6132ccc958a3e44ac9b8f26b64e1_virlock
-
Size
882KB
-
Sample
241122-cayzraxqdm
-
MD5
784d6132ccc958a3e44ac9b8f26b64e1
-
SHA1
3db2b316b3bf5bf9cc5c69e90f013f34ed283d34
-
SHA256
efc7a45fe8efcbc92a1f16bfc3cfd1666fda5340815322af7cbee709c51d7cdc
-
SHA512
5a5ca6f606c3dda9751766cfe799f3f35bf0337494bd21843e6df70588cca0d37014431338c3ed8652fbce4898980db59c063c89f3aa6c89e3a255d7eca5eb6a
-
SSDEEP
24576:H694Zofqlkfx+cvhGHv9aTCJxlCEbrjUfyiXbfHG:H7qCgxHm9aUj8yizH
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-22_784d6132ccc958a3e44ac9b8f26b64e1_virlock.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-22_784d6132ccc958a3e44ac9b8f26b64e1_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
-
-
Target
2024-11-22_784d6132ccc958a3e44ac9b8f26b64e1_virlock
-
Size
882KB
-
MD5
784d6132ccc958a3e44ac9b8f26b64e1
-
SHA1
3db2b316b3bf5bf9cc5c69e90f013f34ed283d34
-
SHA256
efc7a45fe8efcbc92a1f16bfc3cfd1666fda5340815322af7cbee709c51d7cdc
-
SHA512
5a5ca6f606c3dda9751766cfe799f3f35bf0337494bd21843e6df70588cca0d37014431338c3ed8652fbce4898980db59c063c89f3aa6c89e3a255d7eca5eb6a
-
SSDEEP
24576:H694Zofqlkfx+cvhGHv9aTCJxlCEbrjUfyiXbfHG:H7qCgxHm9aUj8yizH
-
Modifies visibility of file extensions in Explorer
-
Renames multiple (76) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Deletes itself
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Drops file in System32 directory
-
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