Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/09/2026, 13:23

General

  • Target
    2026-09-21_4d4ccf367597648ee016995a3638f4ae_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260922-qna2qsfc56
  • SHA256 075cc603ae5f75c3f2d4ec5b363231825321d5269db2214d65bb47d9ce485c31
  • 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\2026-09-21_4d4ccf367597648ee016995a3638f4ae_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-21_4d4ccf367597648ee016995a3638f4ae_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1072

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 331KB
        • SHA256 34d334f6270180e531cc504ebc88870e4f5f6c3f10056873a9b3862bf19575eb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7zFM.exe

        • Path C:\Program Files\7-Zip\7zFM.exe
        • Size 339KB
        • SHA256 4cedb0c546014833e0993c46e95799fc13300df2cbe436401482258172ad6424
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX227.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX227.tmp
        • Size 284KB
        • SHA256 6ebcda9fdcf92a42724e07638353b86b96bc3d1cd036ea900028c0e572d4d3e6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX32C.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX32C.tmp
        • Size 284KB
        • SHA256 7fb3831849538f2f4fe88bb173e8b7f209d5823cb02ea5b91f304dd4851999c1
        • MD5 SHA1 SHA512 SSDEEP TLSH