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
    07/11/2026, 14:12

General

  • Target
    2026-11-07_5488c0369a8315509ec3e9e60902dda3_elex_rhadamanthys_smoke-loader.exe
  • Size 347KB
  • Sample261107-rh1kwafb46
  • SHA256 031d7df55f01530673057a309c9d4bd77748a74a6889de3604cc2897be293cad
  • 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\2026-11-07_5488c0369a8315509ec3e9e60902dda3_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-07_5488c0369a8315509ec3e9e60902dda3_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5952

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 288KB
        • SHA256 1268687db40092f2f6b1c6cf4c130cf57e88c3532632d87382d6125ce5d36ad3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 acb20179b8f01ede5dad48379f4b572e1c947dbafc0b329ea8c03ea190f67128
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2062.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX2062.tmp
        • Size 288KB
        • SHA256 1b8f70ffa6f78cbaa5e994cbca494bbe67fab536d5be6e6653adf8a15d8ca2ac
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 d18749973436d133ee3c04a87a96fc7d5c1dafd3e40cd904d51f85206e5bbd2d
        • MD5 SHA1 SHA512 SSDEEP TLSH