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
    113s
  • 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, 22:22

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General

  • Target
    2026-07-10_8aa3b5a097759231468ad8d66f5293f5_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260710-2ap5aae19s
  • SHA256 a982134ce8e28530bc52b745bd4cc63dc638b9bac916c8a57968691b6bd95b7d
  • 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\2026-07-10_8aa3b5a097759231468ad8d66f5293f5_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-10_8aa3b5a097759231468ad8d66f5293f5_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:4048

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 337KB
        • SHA256 689ce1f5d62de64ed38ffdcf1c1da9e97487e07ee9e99af9e64403d501f95639
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 288KB
        • SHA256 d8742609fa79070ea0452a7bb8ab07e356a815297b3ecd3f5e974c452e320285
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2EBA.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX2EBA.tmp
        • Size 288KB
        • SHA256 ebcb70fc7f3127a70ab4e4fd9af0c4ddccf5b673360fca51a4db9dfd6c34e1ca
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_proxy.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome_proxy.exe
        • Size 337KB
        • SHA256 faaeae18e5be8d6e833d667cc0b33796c20cc50edf22392f3ad3f887ca1f4665
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        default-browser-agent.exe
        • Path C:\Program Files\Mozilla Firefox\default-browser-agent.exe
        • Size 288KB
        • SHA256 3e68df9061f7b77a982ab409553a901415c08a83585bbe95059214554ee4b9db
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download