Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/08/2026, 01:03

General

  • Target
    2026-08-06_1e2ee09e85a968142bd63a7f73ba18f3_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260807-bednyavcqe
  • SHA256 fc01079d389f010f90bcd80ad0d7c4cf3cfddca9e6e56055e6cb928fa11f188c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 6 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\2026-08-06_1e2ee09e85a968142bd63a7f73ba18f3_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-06_1e2ee09e85a968142bd63a7f73ba18f3_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4384

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 330KB
        • SHA256 09f7e8a1d66220aca40c3dd6f2f950230f62b9d364939fb3a59e6ff3607d397e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrmstp.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe
        • Size 1.5MB
        • SHA256 0a73c593e12c2d217b454d51b602f28db9d207f2e42811130f8a11f7751da67f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX23C.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX23C.tmp
        • Size 284KB
        • SHA256 cc351e2b412da422c56791ac238dbf603bd378ae063438b2a302a87446da6e19
        • MD5 SHA1 SHA512 SSDEEP TLSH

        chrome.exe

        • Path C:\Program Files\Google\Chrome\Application\chrome.exe
        • Size 1.5MB
        • SHA256 e819534e34e01bb5433a2cf4ee52f20b96172b86b91d909f6ff2c6e20a22168b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX41B.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX41B.tmp
        • Size 284KB
        • SHA256 a7efad2dbcabdcc34842d9109d4e63371b4fb90a569a46f5b94a09ac175c539b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        helper.exe

        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 330KB
        • SHA256 0f39f824976ec82458f48ff3d6b670e3d999cf406b3031096bb120a87d38a255
        • MD5 SHA1 SHA512 SSDEEP TLSH