Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 11:38

General

  • Target
    doc20210812876462_PDF.jar
  • Size 94KB
  • Sample231231-nrtbdagbhk
  • SHA256 32cbcd636b3295b79872dc883f84bd3c5f378f9e2bd64a73148e8a3d5d6d58f9
  • MD5 SHA1 SHA512 SSDEEP
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\doc20210812876462_PDF.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3768
    • 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:388

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3903daac9bc4a3b7.timestamp

        • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
        • Size 46B
        • SHA256 cd568556859956b1bfe10e48c2d5e47de41bf18d5fe76c62edf40f1d9c4b38e9
        • MD5 SHA1 SHA512

        memory/3768-4-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-18-0x0000025C84780000-0x0000025C84781000-memory.dmp

        memory/3768-19-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-29-0x0000025C84780000-0x0000025C84781000-memory.dmp

        memory/3768-33-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-48-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-52-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-57-0x0000025C847A0000-0x0000025C857A0000-memory.dmp

        memory/3768-72-0x0000025C84780000-0x0000025C84781000-memory.dmp

        memory/3768-76-0x0000025C84780000-0x0000025C84781000-memory.dmp

        memory/3768-78-0x0000025C84780000-0x0000025C84781000-memory.dmp