Overview

overview

10

Static

static

10

2026-07-20...er.exe

windows10-2004-x64

10

2026-07-20...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 02:58

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General

  • Target
    2026-07-20_77e7638a63506bca6c8e960caf0b5bc3_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260720-df9twafz7s
  • SHA256 e2b7b42b8ffa1b1596cf3449eeca4838e90e8c2ea10e799775ec59f9669ac904
  • 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 7 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\2026-07-20_77e7638a63506bca6c8e960caf0b5bc3_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-20_77e7638a63506bca6c8e960caf0b5bc3_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:3456

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 320KB
        • SHA256 9259297defe79da59cf6a9ff8fea94b5e4986d3594892a7f5d1eee4278d45242
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 284KB
        • SHA256 0162da551437b0a0c46ca25c8fd5dd241208adcaee5e38aa1ef1355ef67939fe
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 bb59adc622e658a44c6e563a4db80e0ef732fcba8271ad190cd2cd7dfaf17c4b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX5DC9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX5DC9.tmp
        • Size 284KB
        • SHA256 e01ba81ace471ea2b6008c97f6800375c0d54db382e041ea34c12d6c9ca1d969
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 e52c464ec6ceda4576befe0cf3a81b8c9a48833b4876d50eb5e6a28b793b94c0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 284KB
        • SHA256 5e2d43fe0e79dd5bc08d356ed06ca1671a59042f3d6899ce4357602e0f59dd70
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        default-browser-agent.exe
        • Path C:\Program Files\Mozilla Firefox\default-browser-agent.exe
        • Size 284KB
        • SHA256 2397bbf7a2c2c28f03c6f4d531efbccaa40d267dc59ad62da38941aa902af28b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download