Overview

overview

10

Static

static

10

2026-08-26...er.exe

windows10-2004-x64

10

2026-08-26...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/08/2026, 00:59

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General

  • Target
    2026-08-26_faac5ea6db802b85677fc1de61bf10c5_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260827-bcdadswwdw
  • SHA256 0fcf22e7f504015da208bd80f81495f5e5f77197bb31ae110645d522092a3df5
  • 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\2026-08-26_faac5ea6db802b85677fc1de61bf10c5_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-26_faac5ea6db802b85677fc1de61bf10c5_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:3128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 3ff48e6985c629d812e7e8463642a29edadb7040ebdbe0a11e3616d2eea341e7
        • 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 91f9db5a1836abbcf011a2b08a1fe263df37734851b59e853aaa006b6fe3ea84
        • 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 fb75aab1a67d5da060cc1166b1d9f61f66fed37d2ff722c2e6da419677c697af
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX3C18.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX3C18.tmp
        • Size 288KB
        • SHA256 a5b17b0da786c634f802b035fa3337b62154f287c086ae595942a094c24fa73f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 bf5aa78d1a3f0b624d43c6e95cf2ef7957b8107b398861b0af1194c503b0fca4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download