Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 03:38

General

  • Target
    2026-06-27_b6522fb431245ab6d40791c867801bff_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260629-d63s9act5y
  • SHA256 13cb2d49f96e5896dbc06cbb78177458e8ac635efd2e7984bb1d799e8672f723
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 3 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\2026-06-27_b6522fb431245ab6d40791c867801bff_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-27_b6522fb431245ab6d40791c867801bff_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 333KB
        • SHA256 1210ae163c7cd553608c25e8bef8d6c323b8934ab59b91b8cc350b53e8fe49ea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 5a342ea20c2a4e2e75a5594846af955fdba7f6396dd5ffd57aee825d63ead27a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE1AE.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE1AE.tmp
        • Size 284KB
        • SHA256 241d5dfb38d3ba2bab6d95f23c9751acc7ae52c745537b983d26fb674ed63745
        • MD5 SHA1 SHA512 SSDEEP TLSH