nabucur | b9b6fb05bbe8e610e7e58417a847785070e90c53c723ee25f904855d066bbe37

General

Target
2026-07-02_27b8354b378d49ba444f90f49bd594fb_elex_virlock
Size 2.0MB
Sample260702-cn99yaa18t
SHA256 b9b6fb05bbe8e610e7e58417a847785070e90c53c723ee25f904855d066bbe37
MD5 27b8354b378d49ba444f90f49bd594fb
SHA1 d5275a6db3e46795d7a069fe3ef9a5a8e41c450e
SHA512 0a87f8b82865befcfafbd89b029719423b8bb416321453b9fc07d0d941937a759459eb79b9f27788d258eb7a327bccc5341bd9844dbefbdae59bb4ec21577851
SSDEEP 24576:uWRiNsjkxtUlQCNdp3bIpkXAAoIQZ3qg1x9odjltdQERZDE:a2jkElQq8pUAAoI8aSx9UrdTDE
TLSH
T14AA5FB7E1379550CA5404F074EFAC2E6E67E7CC7E10C469E2FD980A39A90E05AE1DB6C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

Malware Config

Targets

- Target
  2026-07-02_27b8354b378d49ba444f90f49bd594fb_elex_virlock
- Size 2.0MB
- SHA256 b9b6fb05bbe8e610e7e58417a847785070e90c53c723ee25f904855d066bbe37
- MD5 27b8354b378d49ba444f90f49bd594fb
- SHA1 d5275a6db3e46795d7a069fe3ef9a5a8e41c450e
- SHA512 0a87f8b82865befcfafbd89b029719423b8bb416321453b9fc07d0d941937a759459eb79b9f27788d258eb7a327bccc5341bd9844dbefbdae59bb4ec21577851
- SSDEEP 24576:uWRiNsjkxtUlQCNdp3bIpkXAAoIQZ3qg1x9odjltdQERZDE:a2jkElQq8pUAAoI8aSx9UrdTDE
- TLSH
  T14AA5FB7E1379550CA5404F074EFAC2E6E67E7CC7E10C469E2FD980A39A90E05AE1DB6C
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

10^/10

defense_evasion discovery nabucur persistence ransomware spyware stealer trojan adware
- Family: Nabucur
  Nabucur is a ransomware first seen in 2015.
  ransomware nabucur
- Modifies visibility of file extensions in Explorer
  defense_evasion
- UAC bypass
  defense_evasion trojan
- Renames multiple (125) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in System32 directory
behavioral1 behavioral2