Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 19:09

General

  • Target
    2026-08-14_a3eb771e178d7f0e98ebc7895df06fb8_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260814-xtsbjazzaw
  • SHA256 0ee972cc7b9138ae91e8f830bfc5204e7e09b8006dab545ecdddb0c03d65e303
  • 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\2026-08-14_a3eb771e178d7f0e98ebc7895df06fb8_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-14_a3eb771e178d7f0e98ebc7895df06fb8_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4544

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 322KB
        • SHA256 e9f41d274b80a4907fab733c0d2a792d7f3c5dc1baa1c17fd6138eae9b0b2940
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1249.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX1249.tmp
        • Size 284KB
        • SHA256 d7f21c33c21751748c1425b463c709e84cd13ed54d3648437cc0128eedd4a436
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX15AF.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX15AF.tmp
        • Size 284KB
        • SHA256 c19ee0267b9d8448566014c7f8844fcf1168e2e47ce3d38298cd731ef982bbd4
        • MD5 SHA1 SHA512 SSDEEP TLSH