Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/10/2026, 07:05

General

  • Target
    2026-10-05_09dfa0839dbae53c2d7c7564fbf02362_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample261007-hwlt7svs5q
  • SHA256 d27eb169a4800b914433ac66e637668722e15e15bb04a4ef9638fa029b6b0a58
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 4 IoCs

    Cosmu is a worm written in C++.

  • Enumerates connected drives 3 TTPs 10 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-05_09dfa0839dbae53c2d7c7564fbf02362_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-05_09dfa0839dbae53c2d7c7564fbf02362_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 332KB
        • SHA256 aebaa2d4c87757d48b8a90363913a922bd4f06c3a39c37525c60d96b7f791804
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX5FB3.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX5FB3.tmp
        • Size 288KB
        • SHA256 0c6719e19dc07f6e1170a88bde7deb43bee5d688eaee4f41c400b383a0138b3e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX5FB4.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX5FB4.tmp
        • Size 288KB
        • SHA256 4a9bca2890f1d7227546a503fe3c513f39cc2753fc87a64999635c60595f01dc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX5ED2.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX5ED2.tmp
        • Size 288KB
        • SHA256 bc404a4d039624444cb4c98a746a09816774670d1a95feab0f095b3bcaea282f
        • MD5 SHA1 SHA512 SSDEEP TLSH