Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/11/2026, 04:28

General

  • Target
    2026-11-03_e7d15dd4a9dc2da731a229d9ebfc4f34_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261104-e3rr9ae17t
  • SHA256 4b9cc77945691cbecaf79a493be48bf118cbad647ef3aea8f5f40b1412956583
  • 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\2026-11-03_e7d15dd4a9dc2da731a229d9ebfc4f34_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-03_e7d15dd4a9dc2da731a229d9ebfc4f34_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5532

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 01a9c8f18200f16552c235cfb9fd1ec7a3b182001c64b085de7c63b8a08ea092
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7260.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7260.tmp
        • Size 284KB
        • SHA256 525800858c7cabefaaafb007057b2532a66b5dc5721969591c7d01a15864880e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7271.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7271.tmp
        • Size 284KB
        • SHA256 04d061761d28413a56879543ceca2af660f34b1e5c043df18f787659d0972673
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7112.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX7112.tmp
        • Size 284KB
        • SHA256 9d500edea8a8c1e2467d2d13f347c264975b13f57c1ca820e2b53387acf71d60
        • MD5 SHA1 SHA512 SSDEEP TLSH