Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/10/2026, 19:28

General

  • Target
    2026-10-01_adc0092ba7765d90b83a99e6e7d43ac9_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261003-x6tecswckf
  • SHA256 30466a76adf159e2e3f92c1d07f9cff3bce1bb890a98e70d40a0ccc8b79e74d9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 6 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\2026-10-01_adc0092ba7765d90b83a99e6e7d43ac9_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-01_adc0092ba7765d90b83a99e6e7d43ac9_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1760

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 328KB
        • SHA256 59c8f3d272688b469d484e5ea9c581f90492caabb2761382557e8d417e18e182
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AppVShNotify.exe

        • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe
        • Size 284KB
        • SHA256 01ba83f18b3196d413579e6b617cdb32ef6afa9c2d53300e8bfb20a86624ba25
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC96E.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC96E.tmp
        • Size 284KB
        • SHA256 3439d8fdaa7d8152e3afbfb13ef00ee562bd7ce49abd0fb8df398d977aaafe83
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC96F.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC96F.tmp
        • Size 284KB
        • SHA256 76cf74a97cf29194374cb8ca447734b6c1e2cda6737ec69092633828fd975418
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC820.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXC820.tmp
        • Size 284KB
        • SHA256 0742f178b5a7a1bad9633a5c209d8324040c4c5aa5f5d58e74f64af35cb45d0a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        helper.exe

        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 352KB
        • SHA256 acbb7fb336ba4cd97cf8382d32dc9b76a945285e6241c82ff88023902070dc58
        • MD5 SHA1 SHA512 SSDEEP TLSH