Overview

overview

10

Static

static

10

2026-08-02...er.exe

windows10-2004-x64

10

2026-08-02...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 00:46

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General

  • Target
    2026-08-02_1a3fc4501f1538907f3ae601c3dec82a_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260803-a4276avfpf
  • SHA256 10908af413926b5f6deafef5dd3638a4d797db56270e534a61d8cb030b9bbbd2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-02_1a3fc4501f1538907f3ae601c3dec82a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_1a3fc4501f1538907f3ae601c3dec82a_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:5712

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 334KB
        • SHA256 35ee281a89e787eb5bb6c4b773a3e7ab9ade1c3703934cfb08b5b2d9253e6f99
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrmstp.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 728431f8ffdec9e07a2ae9783f84d170f8bdefcfb9bf93a9419f62ec4f86c148
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX47A1.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX47A1.tmp
        • Size 288KB
        • SHA256 1eaf8b0851b798a28933e333622e2540be0157cb31db1d16752d6e753ee0952c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 80d9562482ea9064639032f1ff7d93f0051a2560a238e47b63f60bce4258dd6b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download