Overview

overview

10

Static

static

10

2026-08-12...er.exe

windows10-2004-x64

10

2026-08-12...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    117s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/08/2026, 22:33

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General

  • Target
    2026-08-12_3e4f569d8c9d80f2c6559233e41a4788_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260812-2grlpawdkf
  • SHA256 2aeb3468ccd19ca2be087ca2df4e775ff6996983c6edec83b82713f812096f9b
  • 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\2026-08-12_3e4f569d8c9d80f2c6559233e41a4788_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-12_3e4f569d8c9d80f2c6559233e41a4788_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:2956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 322KB
        • SHA256 3b5e16b5a1a9ce2cf45bae3174d7e4d5d4523272ca8f2a22e1ffd0e3d6f6046a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrmstp.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 1f175d4496f13e5c10b12a920e0cd256c76dae97af4e5ca7948b0593dbf26d19
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX14E9.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX14E9.tmp
        • Size 284KB
        • SHA256 aebe66502af621279fd3482aae3b44ed8d47087bf466916d3dd011a4444030b4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome.exe
        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 ad1544cc0bc70f5a030032e7a9ea09da1aa587f24f0b6943e3a82cf442fe4f18
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX16D8.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX16D8.tmp
        • Size 284KB
        • SHA256 6dfbf1780577e4fb0ddcaeb23b7f745ffaf960be0dc7980d4acea506868e5f86
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download