Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 22:17

General

  • Target
    2026-08-20_0f04ccc6048532202cebd83ddc025830_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260820-17dxvawfle
  • SHA256 bd0fbe360d0db7901f884e8c9361c941e9c3d8ab86f4691e75f371c86b2d972f
  • MD5 SHA1 SHA512 SSDEEP TLSH

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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • 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.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-20_0f04ccc6048532202cebd83ddc025830_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_0f04ccc6048532202cebd83ddc025830_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:2852

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 333KB
        • SHA256 c70e31eeba47389a25f0322f4ea3c0c25e966dc462221ff493aa6f5b3ddfadea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        elevated_tracing_service.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe
        • Size 1.5MB
        • SHA256 d829b5bf17f57bfa4f5a80183be74bb6cf0eb5e13079eb2ce7e22ec2ce5755a3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3C57.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX3C57.tmp
        • Size 284KB
        • SHA256 0444192c3b3a63f85328aa870966b21dfccfc51277a7568f3c55ea4f659ee101
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3E07.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX3E07.tmp
        • Size 284KB
        • SHA256 9daca0debbae1bb1708030381bd116da38be35e2e283eb9bc6c681e4aca43368
        • MD5 SHA1 SHA512 SSDEEP TLSH