Analysis

  • max time kernel
    148s
  • max time network
    111s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 05:50

General

  • Target
    2026-07-11_8e910a1b4b25ee45580cb3639bc2a6d0_elex_rhadamanthys_smoke-loader.exe
  • Size 292KB
  • Sample260711-gjs73scv2k
  • SHA256 9914c41b526daf6df4dec4d4923a370e1c2429f39a55896cb678453b4b29b240
  • 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\2026-07-11_8e910a1b4b25ee45580cb3639bc2a6d0_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-11_8e910a1b4b25ee45580cb3639bc2a6d0_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3912

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 326KB
        • SHA256 268dab86042fc9a7664b7c591f58f9c99192660ec5d0ebfe5358bf0f81c18458
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX74AD.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX74AD.tmp
        • Size 288KB
        • SHA256 b45655dfc4676ee22ec79024d362addc40e1f5eb63a8037604f73c00094bd1b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX75E0.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX75E0.tmp
        • Size 288KB
        • SHA256 4f93a59e2b26aa7052c0cc8aa07ff68d5c15e5033156891dd1111a2235b37662
        • MD5 SHA1 SHA512 SSDEEP TLSH