Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 09:09

General

  • Target
    2026-07-01_8575cfdcaebe15de9c8543671e9bebdd_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample260701-k4tacscw21
  • SHA256 bd8e8834131df1efc2bda12e418c922505204c54c6d5f753f10dc1ab822dd5c8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 3 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\2026-07-01_8575cfdcaebe15de9c8543671e9bebdd_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-01_8575cfdcaebe15de9c8543671e9bebdd_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3096

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 1e85e6ffce5e7de7bae94561ba258e0e059844a08532cc062a97c50236aa7b21
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE42.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXE42.tmp
        • Size 284KB
        • SHA256 f8bf1b3f6da2b79a147ed214546700bed3fbc667cfcb19a53bb1bcc95c68f366
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXFB4.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXFB4.tmp
        • Size 284KB
        • SHA256 c04b53376cd76def1c6d4cdb3c46507fa28ab0236e0cdc5aa3b8c145e481515d
        • MD5 SHA1 SHA512 SSDEEP TLSH