General
-
Target
https://github.com/orangegrouptech/Biohazards-from-orangegrouptech/raw/refs/heads/master/Ransomware/Winlocker.VB6.Blacksod/WinlockerVB6Blacksod.exe
-
Sample
250104-wap7dszmcv
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/orangegrouptech/Biohazards-from-orangegrouptech/raw/refs/heads/master/Ransomware/Winlocker.VB6.Blacksod/WinlockerVB6Blacksod.exe
Resource
win10ltsc2021-20241211-en
Malware Config
Targets
-
-
Target
https://github.com/orangegrouptech/Biohazards-from-orangegrouptech/raw/refs/heads/master/Ransomware/Winlocker.VB6.Blacksod/WinlockerVB6Blacksod.exe
-
BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
-
Badrabbit family
-
Modifies WinLogon for persistence
-
Modifies visibility of file extensions in Explorer
-
Renames multiple (75) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Downloads MZ/PE file
-
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
-
Blocklisted process makes network request
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Legitimate hosting services abused for malware hosting/C2
-
Drops file in System32 directory
-
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
6Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1