Analysis

  • max time kernel
    148s
  • max time network
    133s
  • 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, 07:14

General

  • Target
    2026-08-14_975fecdb6fcde8de831ca84f4628145a_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260814-h2163seq4w
  • SHA256 9ce3b574561933abe3eade2be86f39a5bc3098f0236d6642252c1b5b57bacfaf
  • 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_975fecdb6fcde8de831ca84f4628145a_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-14_975fecdb6fcde8de831ca84f4628145a_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4784

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 2cde3a65d8c07d32cc65763cef8a1ac4d38136a89790844661e34e1851af8672
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX30CE.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX30CE.tmp
        • Size 284KB
        • SHA256 251a65addcf14660379fb0ea796773331efa8a45ad7f004e4abc698a640c63af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3201.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX3201.tmp
        • Size 284KB
        • SHA256 c2e378de5867bd8250df97be347ed8ed0ef82fa48ab154cd26c1b84bf8d1c6e8
        • MD5 SHA1 SHA512 SSDEEP TLSH