Overview

overview

10

Static

static

10

2026-11-04...er.exe

windows10-2004-x64

10

2026-11-04...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    127s
  • 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, 23:26

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General

  • Target
    2026-11-04_7be74d1610602872974fbaff4111429a_elex_rhadamanthys_smoke-loader.exe
  • Size 339KB
  • Sample261105-3e3fvags4m
  • SHA256 73f6f9e564e11106e3f39bfcf97b4335260a888e8e64e37a6acce8f8d2a97eb0
  • 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 3 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\2026-11-04_7be74d1610602872974fbaff4111429a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-04_7be74d1610602872974fbaff4111429a_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:5484

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 a794a688591798c389d6b55653ed3824564400cd63c3328958c024f4603f1307
        • 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 1fa33a70e3906c55fb24147870f3a8f38324c7515b5d38fde04b1f0ab03cfb46
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXC541.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXC541.tmp
        • Size 284KB
        • SHA256 bfcc181d3ec6f4d12260eb4b7d70921bf396ab1b135e2ef94d72fd496482e168
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download