Analysis

  • max time kernel
    148s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 04:22

General

  • Target
    2026-06-30_723de8af2e4a1a440c8dd32bc787cb90_elex_rhadamanthys_stop.exe
  • Size 224KB
  • Sample260701-ezezaaes6l
  • SHA256 0218da65206a10fcaf433ea712f8fde10ff606841b2a16466f7567f71b819c99
  • 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\2026-06-30_723de8af2e4a1a440c8dd32bc787cb90_elex_rhadamanthys_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-30_723de8af2e4a1a440c8dd32bc787cb90_elex_rhadamanthys_stop.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:900

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 274KB
        • SHA256 c5f022a68f6bf23dcf86b777c4c79afce5c9b64d1e9963f73e5bebb19c60c664
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA68F.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXA68F.tmp
        • Size 224KB
        • SHA256 ec4c6209c28d81aa3f7dce2714a87423fbaae9dfa07ee465b2f085bbcf1623aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA793.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXA793.tmp
        • Size 224KB
        • SHA256 a70b5462001bbc107b63917d31f8dea1d80148d02361a9cf7ce2e4705fef51a7
        • MD5 SHA1 SHA512 SSDEEP TLSH