Overview

overview

10

Static

static

10

2026-11-05...er.exe

windows10-2004-x64

10

2026-11-05...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/11/2026, 01:54

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General

  • Target
    2026-11-05_a30a675b1113b4cf67aa428c47987446_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261105-cbmm4se15s
  • SHA256 de6888acbb95cac2d3529b6d8e762bdd3f40450f7a2d86e79139ccaf18f1b18b
  • 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\2026-11-05_a30a675b1113b4cf67aa428c47987446_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-05_a30a675b1113b4cf67aa428c47987446_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:2520

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 323KB
        • SHA256 2011c150bb65270941122a12109b18ddbf1bf55fdd1d7abf39827efdf143257d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXC9AD.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC9AD.tmp
        • Size 284KB
        • SHA256 81e2f12e2173391f1d3a0d086237e53e930efe1df6edab7385851f870663b78a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXC9AE.tmp
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC9AE.tmp
        • Size 284KB
        • SHA256 c2c066f85a0cb73fd956fb51d0f38fc26bddb2fc3ba49b9d447478551d0c9b1e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXC8CC.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXC8CC.tmp
        • Size 284KB
        • SHA256 ec01eb3744336918cc6c70dd890331b5cbd18d6ef3dbb8a44bdda9c431b60c69
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download