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Analysis

  • max time kernel
    140s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/10/2023, 01:12

General

  • Target

    MultiMC/jars/JavaCheck.jar

  • Size

    1KB

  • MD5

    b1ea021a522920256af04f2770691d21

  • SHA1

    a873013577fdf73440081299fe6fbbfa95b5c6f1

  • SHA256

    03382aa4eb7a8e0989d445e7749dcd90fa9703620a24d384d8de2ddb789f9fe9

  • SHA512

    c2fb361b0958b0cc815d0a8abe0318e3cf22d7cfacf6b5a100a20b93387816e9f28ff4360e0dad54b6dd8490d51541597980daafe356831579c1dab36db823b2

Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 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\MultiMC\jars\JavaCheck.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3548
    • 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:4588

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

    30df627d93d3111ff38428aac7b61089

    SHA1

    321c2ed781ee400ffce2211ff1b1cbc65e7c253e

    SHA256

    95796a0380c442916fee48162896a79edb423e5a18eef5828839d33e612ac8c9

    SHA512

    0fb4055c1da2af954346c03985d8c6e6e5a1e94242659bc33249d557061c52dcad30df7b0419cde24055e35faab43dcd303eb882c54e4e2b740a34eba65d24c1

  • memory/3548-2-0x000002412ED10000-0x000002412FD10000-memory.dmp

    Filesize

    16.0MB

  • memory/3548-11-0x000002412ECF0000-0x000002412ECF1000-memory.dmp

    Filesize

    4KB