Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/10/2026, 07:29

General

  • Target
    2026-10-05_05ed7b3e40a182094b362697d742b0b5_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample261007-jbeqtsft6r
  • SHA256 619f1cc723cb60ea54a493413eb92fb65f9a798561fd2e240332a8a3b91b6788
  • 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\2026-10-05_05ed7b3e40a182094b362697d742b0b5_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-05_05ed7b3e40a182094b362697d742b0b5_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4328

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 336KB
        • SHA256 72f66222cd6494ba72fcc18ef0258a54d8300cfc8455a1d567ab1b947ccbb215
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7723.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7723.tmp
        • Size 288KB
        • SHA256 519542ae2f76246239445f6c8bf86ecb598577720ce7df62abba5f37329f92e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7724.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX7724.tmp
        • Size 288KB
        • SHA256 48ddebe09ea5d19b49b2c7c312ebaa345c4503f2a34ebc8b5d23d4ed99ed7288
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX7623.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX7623.tmp
        • Size 288KB
        • SHA256 d10094f11b1bb6ee5c202e2d905cc0b57de11e9b1743d24c1cf182eff11bfea5
        • MD5 SHA1 SHA512 SSDEEP TLSH