Analysis

  • max time kernel
    136s
  • 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
    20/12/2023, 09:26

General

  • Target

    ja-netfilter.jar

  • Size

    47KB

  • MD5

    2fa1b1364515dce93eb67c423b570deb

  • SHA1

    2a723c2ef30be4a5c167c6639bf9ec0b9c7e7ca2

  • SHA256

    3acc4e9d91793f6909458a4761b75b6da45c8868e75dca33c9fec63659202995

  • SHA512

    0b6cf7caf6d48419251d0aa1ccf280536eb20b1f108f874a9ce86943601c2317833031578fc869366e3bc40dedfabfd64527598ea63b879bc77f82a9a218766b

  • SSDEEP

    768:Oh7IDIGjwZyHIwcctMtI+xIfo1UC6cB+P9146lp3fbYHfkWvQdptYc4klY:KSIG0ZuIQMtI+xIrTcB034673fbgvYI

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\ja-netfilter.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4112
    • 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:548

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

    13c0d1899aabc65df5d3f5176afe827e

    SHA1

    57eb4c6a336996ad241e456d38940d7b82d7d204

    SHA256

    c5fa96437b5f21db91c6a9fa3d1c78567d4cc2afc9a50efc20ffb02d827df7d5

    SHA512

    27c62e020a59dc9c6d97de7298310d81f2989fedb7e2278102041ce2798ae0ec9bc4dc74a112a00f052ba39045711d3670b7d040da667236a31b91cb223b0ac5

  • memory/4112-4-0x000001CB80000000-0x000001CB81000000-memory.dmp

    Filesize

    16.0MB

  • memory/4112-12-0x000001CBF9BA0000-0x000001CBF9BA1000-memory.dmp

    Filesize

    4KB