Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 09:28

General

  • Target
    2026-08-30_78417aa54f02e56205ce6f1aa4c257bb_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260831-lffj2aygpg
  • SHA256 693e891a291ea78828f76cac28705af17d0f01af90b59ce1ef86af49f314db75
  • 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\2026-08-30_78417aa54f02e56205ce6f1aa4c257bb_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-30_78417aa54f02e56205ce6f1aa4c257bb_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1324

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 336KB
        • SHA256 b0fb0b4cd8aa0d7f27ab514054a10353e286cbc55989a65e7909185757859616
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDB56.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXDB56.tmp
        • Size 284KB
        • SHA256 ef3218718ac5f44b753fec78e8209595e1291469b252b7edca3fc8adc30b19b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDD64.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXDD64.tmp
        • Size 284KB
        • SHA256 433539026d898afcb2deea01cf729f1ca01748cf46bd8d8eb8debccb6151ef36
        • MD5 SHA1 SHA512 SSDEEP TLSH