Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/08/2026, 00:13

General

  • Target
    2026-08-06_d0fbc8bca3b54fe027e866b090416405_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260807-ahymvaterf
  • SHA256 d0fcba948bf4aad04f35f26fb466843a5b586252e073aa327903c83b27319d73
  • 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\2026-08-06_d0fbc8bca3b54fe027e866b090416405_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-06_d0fbc8bca3b54fe027e866b090416405_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4716

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 320KB
        • SHA256 c95e097303b3557c1042f05b83fee5dccf3550de7a0cf38942f84c3e85ecfb61
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX14F9.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX14F9.tmp
        • Size 284KB
        • SHA256 cc351e2b412da422c56791ac238dbf603bd378ae063438b2a302a87446da6e19
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1820.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX1820.tmp
        • Size 284KB
        • SHA256 a7efad2dbcabdcc34842d9109d4e63371b4fb90a569a46f5b94a09ac175c539b
        • MD5 SHA1 SHA512 SSDEEP TLSH