Analysis

  • max time kernel
    139s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-01-2024 03:59

General

  • Target

    Wurst-Client-v6.35.3-MC1.8-OF.jar

  • Size

    11.8MB

  • MD5

    83813fd2a6f492ad9f62ef3859d742fc

  • SHA1

    54043d07e1254ceed1bd2f380e2aec1a0faedd7b

  • SHA256

    74746620015a769d1182e089a8ef3bcb969e473529aa39ae5fafefaa213936ea

  • SHA512

    a509ceb1762274d58ad63c89d77074722548446fee247716b235e7abab3ddab0462bbf35be51e478e07b541411369462ee7064bd47f8976b26b6c5419d874790

  • SSDEEP

    196608:IF1nSxDqz2SWQ/Gf0g9zQ5m4XPJ4t6vdvFV9S8JY58mZODUcnHgXjaDY9KAEUvnT:IHnSx2Pg9UZXuQdS8tmZOwJXjrKjUfOK

Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\Wurst-Client-v6.35.3-MC1.8-OF.jar
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:260
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

    Filesize

    46B

    MD5

    92cbf148964a718f1a085936946bd6e5

    SHA1

    6cd3c73ba62c522e36f19dce194b15268b6ace53

    SHA256

    3a8197005b09b0cd13c214ad2577a02cc5594a0e954ea85e6652f1a4c0824dce

    SHA512

    bbc0e1991ca1f7a4cfd7182a39362b8da77a98bf0aaf9db7eccd5a6f663be37ee9c050a8e080de7f47ec43d84f2a69f1d2f0b411678bdf666ae55a731025a2da

  • memory/260-41-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-26-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-44-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-25-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-49-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-32-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-35-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-51-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-22-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-12-0x000001CA0E370000-0x000001CA0E371000-memory.dmp

    Filesize

    4KB

  • memory/260-2-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-52-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-53-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-54-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-55-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-56-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB

  • memory/260-57-0x000001CA0FD60000-0x000001CA10D60000-memory.dmp

    Filesize

    16.0MB