Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 03:20

General

  • Target
    2026-07-06_64d5dff867606a96311788060debff21_elex_rhadamanthys_smoke-loader.exe
  • Size 1.4MB
  • Sample260707-dv937agy6s
  • SHA256 8539bf3910eb7716a08a50fe38a6ad27d6960c46d17b835411bed1d8c0b64869
  • 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\2026-07-06_64d5dff867606a96311788060debff21_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-06_64d5dff867606a96311788060debff21_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2868

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 96e0b2ecb9e38d3931addbdb85cd7655dba0789b36703148ad0956af7543f475
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE01D.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXE01D.tmp
        • Size 284KB
        • SHA256 90261216078d5c9958d0c61d538362d77d47984d7f76105f809b7e51351b1368
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE18F.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXE18F.tmp
        • Size 284KB
        • SHA256 14354d08fbb60f2490e8f273d3b7084963f6e0bbea54a1ea1280fbbf5fefd16d
        • MD5 SHA1 SHA512 SSDEEP TLSH