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
    21/10/2026, 03:33

General

  • Target
    2026-10-19_119a4c521f0fb69245cb536b2c80b9a2_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample261021-d4phvayvbt
  • SHA256 edf19f1c6a41dbfd02b399af9592901221c46a333159a35c5184fb1093c392f8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 5 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\2026-10-19_119a4c521f0fb69245cb536b2c80b9a2_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-19_119a4c521f0fb69245cb536b2c80b9a2_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 337KB
        • SHA256 a4ddcbc67022a5406d485580e5380f3542f96bf778d6b356067f41c87b6bc1b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7DDA.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7DDA.tmp
        • Size 284KB
        • SHA256 977d5844d331e6c209344681793776f86effeb22c1af28ab1ca96c5034ba26d0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7DEA.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7DEA.tmp
        • Size 284KB
        • SHA256 dd9fe32f41c090c0fe7d033e9a15cc44dce0d003aafad5f115cef85c6189e4bf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7CCA.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX7CCA.tmp
        • Size 284KB
        • SHA256 9b173d0a7cb7997694170c96233685b1b06202f51185a6755bd34589d883dbd4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        crashreporter.exe

        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 f320222e3e0de18ee3b0f0a7476ced5b959ab413e92ee186582aaedd99e3655a
        • MD5 SHA1 SHA512 SSDEEP TLSH