Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/10/2026, 15:58

General

  • Target
    2026-10-29_27473bde5accd181e6050e857fd592ef_elex_rhadamanthys_smoke-loader.exe
  • Size 340KB
  • Sample261029-tevassd19k
  • SHA256 54a97efc14ee554b86730bb7f0036b1fdece84fa3c529548ce5658d0afe8b173
  • 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\2026-10-29_27473bde5accd181e6050e857fd592ef_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-29_27473bde5accd181e6050e857fd592ef_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3160

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 334KB
        • SHA256 3601a3df5fd0deedb4c688e20bc25ccbb6ed507b9faeea5fa1ed88349a313d81
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1E16.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX1E16.tmp
        • Size 288KB
        • SHA256 c89f6eabadc1de784f7163d1e6275fd70ef583db143e684b1dcfbc2c6f14a117
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1E17.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX1E17.tmp
        • Size 288KB
        • SHA256 cc09b805defc637d25f7fc4a64e1a01be0879bdd9e73d2826300bbe8d7dbfe22
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1D16.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX1D16.tmp
        • Size 288KB
        • SHA256 e3baea2acef891e141b78b4fad7da1f6206ab19b6e1b10de7a6049b02de65b80
        • MD5 SHA1 SHA512 SSDEEP TLSH