Overview

overview

10

Static

static

10

2026-07-10...er.exe

windows10-2004-x64

10

2026-07-10...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    112s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 05:14

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General

  • Target
    2026-07-10_8cb87cb8191cbdf7cde4a0349ab515ae_elex_rhadamanthys_smoke-loader.exe
  • Size 292KB
  • Sample260710-fw3fvadv2n
  • SHA256 39bc42a7a21c92db25cb86af5fef626430ac5c33b8dee5cbbb1b44d5011f90c8
  • 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\2026-07-10_8cb87cb8191cbdf7cde4a0349ab515ae_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-10_8cb87cb8191cbdf7cde4a0349ab515ae_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:444

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 328KB
        • SHA256 5b2b17f3189aacd8c088c6bbf0a59bfe5a145ecdf9400e6b9b1e7c429272e6b4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX84F9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX84F9.tmp
        • Size 284KB
        • SHA256 297b928b91c3e563db563451a7f1ebaa62187ef2bd6adf22f032a601ca021282
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 1cf26ced0999a888e0e12d095d9ae8a9c8de11f8ea822790912c741cd6553317
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX865B.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX865B.tmp
        • Size 284KB
        • SHA256 83ffbd17b81e59cb027d5a19270cf50d587be98ca05c5d53e290a2c1f8c37b07
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download