General

  • Target
    2026-08-19_e9a5b513f90a390274ae02a6abca1481_elex_rhadamanthys_stop
  • Size 816KB
  • Sample260819-vj5srsyejb
  • SHA256 8fd211f87e3f6fe89997b217805df2519ac6d0fd304f0336e157af604575ba9e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      2026-08-19_e9a5b513f90a390274ae02a6abca1481_elex_rhadamanthys_stop
    • Size 816KB
    • SHA256 8fd211f87e3f6fe89997b217805df2519ac6d0fd304f0336e157af604575ba9e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Expiro payload

    • Family: Expiro, m0yv

      Expiro aka m0yv is a multi-functional backdoor written in C++.

    • Disables taskbar notifications via registry modification

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops Chrome extension

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks