Overview

overview

10

Static

static

10

2026-08-03...er.exe

windows10-2004-x64

10

2026-08-03...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 02:49

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General

  • Target
    2026-08-03_6c013f8b7efddcd0ff39c86ac5e4349b_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample260804-da66sseq6z
  • SHA256 5f0cf07134a55169e8617771d37a8c60daee4346311a3b5bd144d5d63daeeb58
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 4 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-03_6c013f8b7efddcd0ff39c86ac5e4349b_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-03_6c013f8b7efddcd0ff39c86ac5e4349b_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:2692

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 327KB
        • SHA256 a8383580b014523bd47f9f41ca6f3d5efda46198ac867bc4531c21b977ffba84
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX25F0.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX25F0.tmp
        • Size 288KB
        • SHA256 4bf82a9df296646e444862c0413bc7b2a99a8c1a16a189c2f551a9c569fd965b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2733.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2733.tmp
        • Size 288KB
        • SHA256 7db12a032c7153fd38ca9f4fa2a97c9da877b957700c0cfc5e446f4a7a4274db
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        jabswitch.exe
        • Path C:\Program Files\Java\jre-1.8\bin\jabswitch.exe
        • Size 288KB
        • SHA256 2684ed9325e340f932d35b191225b3010571bc670baa0cbc86dc90f1557e825b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download