Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/10/2026, 08:53

General

  • Target
    2026-10-13_8e651d6ad424316b7ca5866af822282e_elex_rhadamanthys_smoke-loader.exe
  • Size 420KB
  • Sample261015-ktlgrsys6n
  • SHA256 dc4b4f6cad12b8330f4bae2eef6e5503d57ffecf2d94f2cb35da6dcb0033c168
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 7 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\2026-10-13_8e651d6ad424316b7ca5866af822282e_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-13_8e651d6ad424316b7ca5866af822282e_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 327KB
        • SHA256 6d70e2cfc1293b3e79e311134c296c305c25c697f547767931570e7576c68c16
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBD44.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXBD44.tmp
        • Size 284KB
        • SHA256 2484f8a346db66fa62b8c79b22d2eebca3260fc82a41ac96fb6174ca24e44605
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 215d7741ced751ac37b355f4a9d329853b82114344a4007a6eaa952da637af58
        • MD5 SHA1 SHA512 SSDEEP TLSH

        elevated_tracing_service.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe
        • Size 1.5MB
        • SHA256 3cd7ef27221a1f1925e2396dc0d225cbd61e4140e8536a4d08f3b44b84a0bba7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBC34.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXBC34.tmp
        • Size 284KB
        • SHA256 f7c0e29373396823b2b9cccf4f79ba4d9557ab15289704db89596ccb988d2f45
        • MD5 SHA1 SHA512 SSDEEP TLSH

        default-browser-agent.exe

        • Path C:\Program Files\Mozilla Firefox\default-browser-agent.exe
        • Size 284KB
        • SHA256 d4014bb7330b9e9f5d3e5b5345d29ebd94449fd1dd20d5d5ba0ad9d0d253a601
        • MD5 SHA1 SHA512 SSDEEP TLSH

        helper.exe

        • Path C:\Program Files\Mozilla Firefox\uninstall\helper.exe
        • Size 351KB
        • SHA256 f2919e537c71c1e5d4fc2eea15538a8e3ff20afddadbf2447a45049b70aa2834
        • MD5 SHA1 SHA512 SSDEEP TLSH