Overview

overview

10

Static

static

10

2026-09-22...er.exe

windows10-2004-x64

10

2026-09-22...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/09/2026, 22:18

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General

  • Target
    2026-09-22_17c4f5e61780a7fd1a0a94448fe900bd_elex_rhadamanthys_smoke-loader.exe
  • Size 2.1MB
  • Sample260922-18btwage92
  • SHA256 d2b2d49e557f779670fe30ad1653f680ae3763652fd25afa2a2c319708f72d49
  • 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\2026-09-22_17c4f5e61780a7fd1a0a94448fe900bd_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-22_17c4f5e61780a7fd1a0a94448fe900bd_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:1132

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 1edf584d5ddd62175ca3ae6a2d6182a614532d74818efab75cc8128b9c7951b2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_pwa_launcher.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe
        • Size 1.5MB
        • SHA256 e32bd403a2f1ed5b4c3a1d8de707392327e4eb5d0f2a6ce19a676a750c65a526
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF684.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCXF684.tmp
        • Size 284KB
        • SHA256 c1c838105c88be8a32ea90480942fda60dbbc171075aaf2f5f150b0a2af43d5e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCXF7C7.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCXF7C7.tmp
        • Size 284KB
        • SHA256 459ba71339a43dd68d989419504824d351037c6c4b2137fe42cfefc1cf9faaaa
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download