Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/08/2026, 07:33

General

  • Target
    2026-08-16_6cf5915236b86e1cfdff82076c7c6605_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260816-jdzh1sseqg
  • SHA256 0d788dc0d50e2bd9c8071f8b0706c5851909385d5488ccae43d499f8e166b0e6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • 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.

  • Drops file in Program Files directory 64 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-16_6cf5915236b86e1cfdff82076c7c6605_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-16_6cf5915236b86e1cfdff82076c7c6605_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2036

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 c16ec21e1131a6e4703ae4a5f340b1eb1c8430b22959856b27a931667e5f6f88
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrmstp.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 6e93e1c0a6f5cca0a91e28e9c98082f91b364d8abdb465e969e9a36f04762b07
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome_pwa_launcher.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe
        • Size 1.5MB
        • SHA256 0992e0ff9025b1c7afaa9c4beb2fa32bb3b43f802f9c7147c0e4e7410a438ff0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX890F.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX890F.tmp
        • Size 284KB
        • SHA256 72e3804b99d8d256e65806eea73982959f6fc3ae811269a471668bf3305b3c4f
        • MD5 SHA1 SHA512 SSDEEP TLSH