Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 04:51

General

  • Target
    2026-08-08_966e2dcfbb978d12d02f379289488089_elex_rhadamanthys_smoke-loader.exe
  • Size 444KB
  • Sample260808-fgxbaazhrf
  • SHA256 8050e826055ddde8464e47b6f0585221c2f7154a2728e4ce3186951144e488b4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • 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.

  • 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\2026-08-08_966e2dcfbb978d12d02f379289488089_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_966e2dcfbb978d12d02f379289488089_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4356

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 b92fbf1871c1c817a1cab8c30a47b036785a42968231d3bde57ff22af35ba6c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        elevated_tracing_service.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe
        • Size 1.5MB
        • SHA256 7ece0638e42f5aec4515c3c099e0bb9d02b0dc779e147bd80137c350be18e4e2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX78A4.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX78A4.tmp
        • Size 284KB
        • SHA256 d9cd2293d375343c26000aa06630381eb53e009eacd744ba2f6171cd7acea25f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7C0A.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX7C0A.tmp
        • Size 284KB
        • SHA256 030748df5abc3b79516bf09c64acb186ffe289bfa105b12b437e5d000d77a965
        • MD5 SHA1 SHA512 SSDEEP TLSH

        helper.exe

        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 353KB
        • SHA256 7413c036aa79e2f4a2b14e625264fe0592d44d479fb66a43fab4d56e44626338
        • MD5 SHA1 SHA512 SSDEEP TLSH