Analysis

  • max time kernel
    148s
  • max time network
    116s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 05:40

General

  • Target
    2026-07-31_86e34c33b79eb385f1e1cb2be0079304_elex_rhadamanthys_smoke-loader.exe
  • Size 296KB
  • Sample260731-gc2wmsde88
  • SHA256 7077d477e82f46f7fe58f17d6170dcec331c17731638981d2db4b3e3d9e5fe91
  • 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\2026-07-31_86e34c33b79eb385f1e1cb2be0079304_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-31_86e34c33b79eb385f1e1cb2be0079304_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5564

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 331KB
        • SHA256 e282ebdc443ad64a1bb7bf836a0b150680d28297771f2d27959c224b2ec565a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDD88.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXDD88.tmp
        • Size 288KB
        • SHA256 9268ea47d0dbbb8e7a00d208edd8ba9b4e66938f385b49a3a588c378b6a0648f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDF39.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXDF39.tmp
        • Size 288KB
        • SHA256 ecc1fd5202d3421eef3bcbd9ad50615cfc7cb951c98ea249de5ab28c9c0dcb81
        • MD5 SHA1 SHA512 SSDEEP TLSH