Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 04:34

General

  • Target
    2026-10-22_9259ca69737bb26c337224f5b24e6862_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample261024-e7f7bafx7s
  • SHA256 b0c6c46acaf0dc1597c9ee7bcdd7b0b8ce72ec2dacd6e641ff66e80239246aaf
  • 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\2026-10-22_9259ca69737bb26c337224f5b24e6862_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-22_9259ca69737bb26c337224f5b24e6862_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4340

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 326KB
        • SHA256 a289a72d5ed45dd1734145d509ec8fe2bfe973167e5fc46c615975d8f6433b9f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX981D.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX981D.tmp
        • Size 284KB
        • SHA256 9a87ebe6aeb4ebdaf9774206b44050477fa1e3d3fc5a52aa52e7dbdb61552fc9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX981E.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX981E.tmp
        • Size 284KB
        • SHA256 4861729a70f254aa909361f8a8abbef6c956eb8729754e25440f79fb54200c77
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX972D.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX972D.tmp
        • Size 284KB
        • SHA256 f68dafe06019828de86de92b89fb1d584ca06f4dd24ed0464cbbaf8df6f44772
        • MD5 SHA1 SHA512 SSDEEP TLSH