Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-10-2023 10:27

General

  • Target

    opzkjztnty.jar

  • Size

    164KB

  • MD5

    250d09e650c301b53d00a703f39354d1

  • SHA1

    aeb977370e8e40c7323ecebe262d153ea59bd7c6

  • SHA256

    27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6b

  • SHA512

    26130963ba22be6a76bba8d9d6345bf2cd3098f1ba77aa623deed44dd8552268e37b27c50d0fa2727a98a95c2abcdc4fab82838c4e28b9d3cf9987e0b0c5c352

  • SSDEEP

    3072:Yw81M/EYAmf2Es926lSu9TFrkVYOms/0dOM4rgx+Feg0xwLxY5cE:YzIfNTu9TiVYOme0PQFAxw9KP

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\opzkjztnty.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2884
    • 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:2972

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

    6b6b508f011a34e41be55f0d464d77af

    SHA1

    f9fde1b5203a3aeab1d1eb7300eee2c1ac049872

    SHA256

    8ce9f3c026c8a1bdb2aba468b915848f8d47046940f78e9cb17342b89a32981e

    SHA512

    784ca9ebcafc90eace613263fe98534df3751ae55777417bed56ae4d4f69ead73c510bfc1c7633310ac832d8ca72ea3a5089c91b5270c6b78f8449be7da3ceb7

  • memory/2884-48-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-12-0x000001E8EF310000-0x000001E8EF311000-memory.dmp

    Filesize

    4KB

  • memory/2884-17-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-33-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-40-0x000001E8EF310000-0x000001E8EF311000-memory.dmp

    Filesize

    4KB

  • memory/2884-4-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-51-0x000001E8EF310000-0x000001E8EF311000-memory.dmp

    Filesize

    4KB

  • memory/2884-56-0x000001E8EF310000-0x000001E8EF311000-memory.dmp

    Filesize

    4KB

  • memory/2884-58-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-67-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-76-0x000001E8EF310000-0x000001E8EF311000-memory.dmp

    Filesize

    4KB

  • memory/2884-164-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB

  • memory/2884-171-0x000001E8F0BC0000-0x000001E8F1BC0000-memory.dmp

    Filesize

    16.0MB