Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 16:22

General

  • Target
    2026-07-08_f9c9f18ff09b13ccb82b25b8166a1f36_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260708-tvmkwsct5m
  • SHA256 168415dcce9d45544fd312780e3c331cc4d998c066d2c467ddf5f50a49c0f263
  • 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\2026-07-08_f9c9f18ff09b13ccb82b25b8166a1f36_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-08_f9c9f18ff09b13ccb82b25b8166a1f36_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5348

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 77f0738c78ffbdd7c27cdc385eaa581724134dd23bcdea3d94d05f2efbc71988
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3199.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX3199.tmp
        • Size 288KB
        • SHA256 422e9560398b050ade731f9788d72b7f2886a1ab0152b09ab9aa32665b45858f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX330B.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX330B.tmp
        • Size 288KB
        • SHA256 465f097a3f5ed3e9793cb4fe4611e70b46cc81b9f567fd7368ce22cd4c74d61a
        • MD5 SHA1 SHA512 SSDEEP TLSH