General
-
Target
2024-09-21_ff41c716b0e3eace441f1a03ac00434a_virlock
-
Size
139KB
-
Sample
240921-bv1teayfnr
-
MD5
ff41c716b0e3eace441f1a03ac00434a
-
SHA1
ad9d8a6c7ad68f33ca6a23cb84a9b255259619a0
-
SHA256
2b652d70089cfa3bc3e38f60d0b63cbb8602fc56934e0f8f011d4e110eb83453
-
SHA512
ceac47dde3979f74cb2016f7eeb9592520616c40b63e39762315a3aa9009634edcb68f1781f94a4aebe3db07647197a7ac0eccd19ecda4ebcff01af0246a9df9
-
SSDEEP
3072:Mo0Qz4z0GJxhvoPOF9zhpx9yUo4yZHaUoxekmQv:mQIT9zLx8UozsVd
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-21_ff41c716b0e3eace441f1a03ac00434a_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-21_ff41c716b0e3eace441f1a03ac00434a_virlock.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
-
-
Target
2024-09-21_ff41c716b0e3eace441f1a03ac00434a_virlock
-
Size
139KB
-
MD5
ff41c716b0e3eace441f1a03ac00434a
-
SHA1
ad9d8a6c7ad68f33ca6a23cb84a9b255259619a0
-
SHA256
2b652d70089cfa3bc3e38f60d0b63cbb8602fc56934e0f8f011d4e110eb83453
-
SHA512
ceac47dde3979f74cb2016f7eeb9592520616c40b63e39762315a3aa9009634edcb68f1781f94a4aebe3db07647197a7ac0eccd19ecda4ebcff01af0246a9df9
-
SSDEEP
3072:Mo0Qz4z0GJxhvoPOF9zhpx9yUo4yZHaUoxekmQv:mQIT9zLx8UozsVd
-
Modifies visibility of file extensions in Explorer
-
Renames multiple (84) 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.
-
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
4