Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 07:04

General

  • Target
    2026-08-22_6a4bf1bc33f0c5e94a1896e6db3d7d5f_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260823-hwcljayxd1
  • SHA256 64d520076dfc6d07ac4a1b6a9c3d8d182f80b29c1dd2bb119937d2d65d33417a
  • 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\2026-08-22_6a4bf1bc33f0c5e94a1896e6db3d7d5f_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-22_6a4bf1bc33f0c5e94a1896e6db3d7d5f_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1532

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 327KB
        • SHA256 20b8b4aa932c2c23e999ee21247b07351b592753aef7d6d616257ed8b667ef81
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2B11.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX2B11.tmp
        • Size 284KB
        • SHA256 6b0b479ebd3b75a7fa42dcc1ccec189285f9eb9eb6c12c0ab24ffec83c411932
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2CA2.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2CA2.tmp
        • Size 284KB
        • SHA256 43141d1af8a7ae7037db35c08154d23127f7894e9725072ef022327e0b81e42a
        • MD5 SHA1 SHA512 SSDEEP TLSH