Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 07:46

General

  • Target
    2026-07-20_71d4dc271e8ee5532810b57bb016834f_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260720-jl2cksds8z
  • SHA256 c34308aa1d93563d1924d78830261ad02f9584599aec1954047320b3bb43e546
  • 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\2026-07-20_71d4dc271e8ee5532810b57bb016834f_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-20_71d4dc271e8ee5532810b57bb016834f_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3372

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 328KB
        • SHA256 d63af7441ca4bc4a3aa9cd6a9fd98906ed2a13b8e87efac902ee0e61437b3a57
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1EFB.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX1EFB.tmp
        • Size 284KB
        • SHA256 98dec1c926ca61ba46964428425d2e05b6d51bb97284ab72cce1b05f96bb81fa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX207D.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX207D.tmp
        • Size 284KB
        • SHA256 dcd0ab98a7e7e567b7b7e1c0604ccfb0d2d9f90ad49037da7175d4f1ad1ab4e4
        • MD5 SHA1 SHA512 SSDEEP TLSH