Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 09:38

General

  • Target
    2026-09-07_9bb2cc7ac00345d3d570106b6cc841ae_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260908-lmax5aef26
  • SHA256 aeedea2a0903b5f1fd3e7ea162b4be2b8b47796bd2eef238531ec4c6bbe70418
  • 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\2026-09-07_9bb2cc7ac00345d3d570106b6cc841ae_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-07_9bb2cc7ac00345d3d570106b6cc841ae_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4680

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 335KB
        • SHA256 c60cd0622627c31c2fac6aa6469960a73b88094069d0b9e416283eab446c35c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE420.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXE420.tmp
        • Size 284KB
        • SHA256 dde310f99429237986ec2f4ddeba619e8fdc2ee1ead88a4dfc0e6e19781f41e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE68C.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE68C.tmp
        • Size 284KB
        • SHA256 405c32c018682c0eaf0fbf64d8a196ce76acbefcffb2acefe8329a4edb15bac2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        helper.exe

        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 359KB
        • SHA256 c3e1d96684c53d43e54ca483271e6189e129bcf0480eaa96251e7ffdae887b53
        • MD5 SHA1 SHA512 SSDEEP TLSH