Overview

overview

10

Static

static

10

2026-07-29...er.exe

windows10-2004-x64

10

2026-07-29...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    135s
  • 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, 22:08

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General

  • Target
    2026-07-29_e3987a08654ada9733ede23d67de7307_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260729-119e6stdka
  • SHA256 1ffc130d12170dc3e0a159fb6aa6f56d1e26882669b0a6934cf532257a374714
  • 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 5 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\2026-07-29_e3987a08654ada9733ede23d67de7307_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-29_e3987a08654ada9733ede23d67de7307_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:1316

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 332KB
        • SHA256 d89cacc7b6288e18e5f45217c49f3ac9ef2072c3be2f15f6c659b9bdcb8bd632
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX5405.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX5405.tmp
        • Size 284KB
        • SHA256 13b738823db887b7ac5748721ff47a8ec51c476b907c3a86063f166077113ec5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 1d9ce69fe5d4b68bd19c0cf4180886a217476242ba468b9e6149d667d5b473b6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 332KB
        • SHA256 0863cfbd619fd4c1ac2a5d8939b7ae9180c53252e1bd5dffba316e6d38c0b6b9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX55C5.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX55C5.tmp
        • Size 284KB
        • SHA256 cf5c80798486226698239338d312b74afb24fa4b756f03e5fd54addbb6454b2f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download