Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 06:20

General

  • Target
    2026-08-04_8e8b49e8f3bf49d7a1335eefe4f32e19_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260804-g3ylxaxyft
  • SHA256 7cd4d3ffcc2c7f7585b3675807572b8a8ec9a48871496afc70f7cf06ae7afa7b
  • 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\2026-08-04_8e8b49e8f3bf49d7a1335eefe4f32e19_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_8e8b49e8f3bf49d7a1335eefe4f32e19_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3412

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 332KB
        • SHA256 cd9a9dd42c2724dcce71aac036fb078c2121eaa86ffb98069bf19d91b122516f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 284KB
        • SHA256 8f68e2cb2e51d5d84ee270174d25e12675b63aacd16a09fd5967d01d76d9fc73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAAD0.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXAAD0.tmp
        • Size 284KB
        • SHA256 280a850e755de4eb224b56ff71f7d60f19ce6c12fde4382d8ccc3a7792376cdd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jabswitch.exe

        • Path C:\Program Files\Java\jre-1.8\bin\jabswitch.exe
        • Size 284KB
        • SHA256 1b28fac993720d22813729931baf2680b79e86f08958f075a0d040948ac61c86
        • MD5 SHA1 SHA512 SSDEEP TLSH