Analysis

  • max time kernel
    66s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/04/2024, 20:03

General

  • Target
    018e4debaa5d4f10530bc5753c003751_JaffaCakes118.jar
  • Size 532KB
  • Sample240426-ystnmsca41
  • SHA256 ab673d01526a2638fc3080ae32bfbc4d903add09dbc23d2cc26c2e692a62b604
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\018e4debaa5d4f10530bc5753c003751_JaffaCakes118.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2112
    • 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:984
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.7072338034098639444194747335010462.class
      2⤵
        PID:4876

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          3903daac9bc4a3b7.timestamp

          • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
          • Size 46B
          • SHA256 afbde086b9a0780dfae3efaf49649be83371e84018f872699a85fbb2bdde6de6
          • MD5 SHA1 SHA512

          _0.7072338034098639444194747335010462.class

          • Path C:\Users\Admin\AppData\Local\Temp\_0.7072338034098639444194747335010462.class
          • Size 241KB
          • SHA256 97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
          • MD5 SHA1 SHA512 SSDEEP

          memory/2112-21-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-10-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-33-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-34-0x000002F8A23B0000-0x000002F8A23B1000-memory.dmp

          memory/2112-35-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-36-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-37-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-12-0x000002F8A23B0000-0x000002F8A23B1000-memory.dmp

          memory/2112-47-0x000002F8A23B0000-0x000002F8A23B1000-memory.dmp

          memory/2112-49-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/2112-50-0x000002F8A3B80000-0x000002F8A4B80000-memory.dmp

          memory/4876-48-0x000002926B280000-0x000002926B4F0000-memory.dmp