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
    20/07/2026, 17:49

General

  • Target
    2026-07-20_45cecb2a3e44af56c3ebb4d0b0c98ccd_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260720-wecrvsbz4v
  • SHA256 bcfcc834ffce1f18dc5fd45ec5d38f27f88a06cf5095c3de72b63e5621e5b186
  • 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\2026-07-20_45cecb2a3e44af56c3ebb4d0b0c98ccd_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-20_45cecb2a3e44af56c3ebb4d0b0c98ccd_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4072

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 d3fac0d16962777ee161227bcfd5b0894d4ceb7ee9f1eb9549003609db789d36
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC070.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXC070.tmp
        • Size 284KB
        • SHA256 7ea007bfde1e14fb9eef179c50bbc55c2b996771bbc571fb0fee96ad9cdc719d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC1C3.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXC1C3.tmp
        • Size 284KB
        • SHA256 bd03412fea5bf3d40b5822d7c44f6201a30877b298f5ced7daa3da8d74fe4c37
        • MD5 SHA1 SHA512 SSDEEP TLSH