General

  • Target
    5719815b9e702f22bf12d41029551bb5ef52c7e17aa6c72fda082dd8e7b4a421
  • Size 1.6MB
  • Sample260907-j85zaazzfv
  • SHA256 5719815b9e702f22bf12d41029551bb5ef52c7e17aa6c72fda082dd8e7b4a421
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      5719815b9e702f22bf12d41029551bb5ef52c7e17aa6c72fda082dd8e7b4a421
    • Size 1.6MB
    • SHA256 5719815b9e702f22bf12d41029551bb5ef52c7e17aa6c72fda082dd8e7b4a421
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Nabucur

      Nabucur is a ransomware first seen in 2015.

    • Modifies visibility of file extensions in Explorer

    • Renames multiple (161) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks