Analysis

  • max time kernel
    148s
  • max time network
    116s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 07:16

General

  • Target
    2026-08-14_949b5e6bfc4407cb01b54d0589cca759_elex_rhadamanthys_smoke-loader.exe
  • Size 652KB
  • Sample260814-h32h8seq6s
  • SHA256 61b64323e65f4abffc67ab91517ed9251ec982e70fb5c2cf537483844492c7b4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 3 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\2026-08-14_949b5e6bfc4407cb01b54d0589cca759_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-14_949b5e6bfc4407cb01b54d0589cca759_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4812

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 342dc6cf9aba686ba82744e91f0d63f0019d7b0e831fe6ea294bb421402254df
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX557C.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX557C.tmp
        • Size 288KB
        • SHA256 85feb17cc0a18e149089264f4c7a92616821c766e16f9f720429ba07ba538b01
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX5817.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX5817.tmp
        • Size 288KB
        • SHA256 98412575266f5f6a3a8c04aa88909a6b1fdef57c171a575fe957ab74082babaa
        • MD5 SHA1 SHA512 SSDEEP TLSH