Overview

overview

10

Static

static

10

2026-09-10...er.exe

windows10-2004-x64

10

2026-09-10...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 23:58

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General

  • Target
    2026-09-10_f5cd160d918d954b22c8f9356b0ec91c_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260910-3z92esfb37
  • SHA256 45b08a3272c0f7e25e7fd5bcde2536885b6c70750f58f8be48f1f65698005354
  • 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\2026-09-10_f5cd160d918d954b22c8f9356b0ec91c_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-10_f5cd160d918d954b22c8f9356b0ec91c_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:3332

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 333KB
        • SHA256 3bcc82f112c76b84eba11d0419c684f069511aa673ff1a5d8ad85473fced2ad6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 288KB
        • SHA256 54153e7b2387f3dd04109a31febfe4509fdbd2fb4ec5663818cbaecb0f0458e8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX9A02.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX9A02.tmp
        • Size 288KB
        • SHA256 f953391315587e9a1227a7c5f441e37c86ae44249acc661d6f5c736722ea1fbc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 288KB
        • SHA256 8f200729d5e4d54d3c1b541b0cbfe84da15a5cdf72041fb6fe09c6d6be25500d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        helper.exe
        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 357KB
        • SHA256 a91f2f41f85f5aa8e5a0062543ff6a9648535189bc9b913324534d4118764424
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download