Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 21:16

General

  • Target
    2026-11-02_d84e344d617fdb13a81613865100f361_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261102-z4ejjadt2x
  • SHA256 652efc718b5bf3298a4ef46d5311c0947251d4dff9f2d0e44ca9f6131253130b
  • 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\2026-11-02_d84e344d617fdb13a81613865100f361_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-02_d84e344d617fdb13a81613865100f361_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4644

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 326KB
        • SHA256 af2493df448379def9a0c4ff6ba4d084f20bf1a80fcc521c51054b932638b38b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX251B.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX251B.tmp
        • Size 284KB
        • SHA256 5d049311cbe83a6fa41fcf095c284755cdcdf0afa57ad4c06b08a94ad3811336
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX251C.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX251C.tmp
        • Size 284KB
        • SHA256 7f2de3d2ac4a5351d35e81828064e8c18c7110b459b7e18b7ea5d9bfa7a800a8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX241B.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX241B.tmp
        • Size 284KB
        • SHA256 165c9f430831ce9a82c051c1cdbc0cbe43452868e0828e13e2dc34b0cbb2f61f
        • MD5 SHA1 SHA512 SSDEEP TLSH