Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/10/2026, 13:53

General

  • Target
    2026-10-14_b49ef2b3eea5893bf4055bc9f49055ce_elex_rhadamanthys_smoke-loader.exe
  • Size 329KB
  • Sample261014-q66lcssy9q
  • SHA256 ae66f73a453a29952c40dda810febd7c0d72bb0afabc1fec14a58b0660ae1291
  • 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\2026-10-14_b49ef2b3eea5893bf4055bc9f49055ce_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-14_b49ef2b3eea5893bf4055bc9f49055ce_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:728

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 fd2b081f122c0bcf23b2b9d5a455a4865b42c4b8045b46142a38fe6793ada929
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8C70.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX8C70.tmp
        • Size 284KB
        • SHA256 c04318a2821dc5a87964548749f0542ae55ba718c56ffea4c7a25d8992d3db0d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8C81.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX8C81.tmp
        • Size 284KB
        • SHA256 e9a12842f5402d9a56c2d6d152a975d5f364714d5289ad09b1bea29e76429e39
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8AB4.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX8AB4.tmp
        • Size 284KB
        • SHA256 3c168b2d329b7020e0079c93ace135c8c8960efd9a68e18a95944f5c32de8f55
        • MD5 SHA1 SHA512 SSDEEP TLSH