Overview

overview

10

Static

static

10

2026-07-28...er.exe

windows10-2004-x64

10

2026-07-28...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    133s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 01:32

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General

  • Target
    2026-07-28_2f9c1717594dd7e629500df94b7a2dd2_elex_rhadamanthys_smoke-loader.exe
  • Size 2.1MB
  • Sample260729-byeqcatvax
  • SHA256 5afedecd8643fe575d960cec80bd698452172231d6a9796ed3ec73e1005661ce
  • 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\2026-07-28_2f9c1717594dd7e629500df94b7a2dd2_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_2f9c1717594dd7e629500df94b7a2dd2_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:4224

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 341KB
        • SHA256 895ea1a8bb49d27551ddfe99d1b89711f9b0889d7225ebecbb3c3e447f4ee7ea
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        elevated_tracing_service.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe
        • Size 1.5MB
        • SHA256 22dd21f141f92368ee3882d68a3ec31c8f763474fae49c5e87745a806f44a28a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF471.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXF471.tmp
        • Size 288KB
        • SHA256 14acc33742c4430347d9fbc4c78de6a9ce57b0a67f4052b9230f350991c303b0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF5C3.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXF5C3.tmp
        • Size 288KB
        • SHA256 a5332dc98afe7a1c90ec3583fc31b70840bf325a3fbad2b07fd08f44ae39daeb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download