Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/05/2024, 03:11

General

  • Target
    0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar
  • Size 64KB
  • Sample240511-dpp6tsab2y
  • SHA256 0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • Drops startup file 1 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3068
    • 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:1212
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4628
      • C:\Windows\system32\schtasks.exe
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar"
        3⤵
        • Creates scheduled task(s)
        PID:2016
    • 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\Roaming\0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar"
      2⤵
        PID:4656

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb.jar
          • Size 64KB
          • SHA256 0fb1d11732acd516de3da578ac8d7a4a0f51684f588898bc0621fe5424cef0eb
          • MD5 SHA1 SHA512 SSDEEP

          3903daac9bc4a3b7.timestamp

          • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
          • Size 46B
          • SHA256 fb46c086b4395922cee33e53364a698d0376888a17d0aaa316fde5c5d75887a2
          • MD5 SHA1 SHA512

          memory/3068-36-0x000002CADE210000-0x000002CADE220000-memory.dmp

          memory/3068-35-0x000002CADE200000-0x000002CADE210000-memory.dmp

          memory/3068-19-0x000002CADE230000-0x000002CADE240000-memory.dmp

          memory/3068-21-0x000002CADE240000-0x000002CADE250000-memory.dmp

          memory/3068-18-0x000002CADE220000-0x000002CADE230000-memory.dmp

          memory/3068-15-0x000002CADE210000-0x000002CADE220000-memory.dmp

          memory/3068-24-0x000002CADE250000-0x000002CADE260000-memory.dmp

          memory/3068-25-0x000002CADE260000-0x000002CADE270000-memory.dmp

          memory/3068-33-0x000002CADDF70000-0x000002CADDF71000-memory.dmp

          memory/3068-34-0x000002CADDF90000-0x000002CADE200000-memory.dmp

          memory/3068-41-0x000002CADE260000-0x000002CADE270000-memory.dmp

          memory/3068-40-0x000002CADE250000-0x000002CADE260000-memory.dmp

          memory/3068-39-0x000002CADE240000-0x000002CADE250000-memory.dmp

          memory/3068-38-0x000002CADE230000-0x000002CADE240000-memory.dmp

          memory/3068-37-0x000002CADE220000-0x000002CADE230000-memory.dmp

          memory/3068-14-0x000002CADE200000-0x000002CADE210000-memory.dmp

          memory/3068-2-0x000002CADDF90000-0x000002CADE200000-memory.dmp

          memory/4656-57-0x0000020A32430000-0x0000020A32440000-memory.dmp

          memory/4656-71-0x0000020A30930000-0x0000020A30931000-memory.dmp

          memory/4656-55-0x0000020A32420000-0x0000020A32430000-memory.dmp

          memory/4656-59-0x0000020A32440000-0x0000020A32450000-memory.dmp

          memory/4656-63-0x0000020A32460000-0x0000020A32470000-memory.dmp

          memory/4656-62-0x0000020A32450000-0x0000020A32460000-memory.dmp

          memory/4656-66-0x0000020A32470000-0x0000020A32480000-memory.dmp

          memory/4656-68-0x0000020A32480000-0x0000020A32490000-memory.dmp

          memory/4656-70-0x0000020A32490000-0x0000020A324A0000-memory.dmp

          memory/4656-45-0x0000020A321B0000-0x0000020A32420000-memory.dmp

          memory/4656-73-0x0000020A321B0000-0x0000020A32420000-memory.dmp

          memory/4656-74-0x0000020A32420000-0x0000020A32430000-memory.dmp

          memory/4656-75-0x0000020A32430000-0x0000020A32440000-memory.dmp

          memory/4656-76-0x0000020A32440000-0x0000020A32450000-memory.dmp

          memory/4656-78-0x0000020A32460000-0x0000020A32470000-memory.dmp

          memory/4656-77-0x0000020A32450000-0x0000020A32460000-memory.dmp

          memory/4656-79-0x0000020A32470000-0x0000020A32480000-memory.dmp

          memory/4656-80-0x0000020A32480000-0x0000020A32490000-memory.dmp

          memory/4656-81-0x0000020A32490000-0x0000020A324A0000-memory.dmp

          memory/4656-84-0x0000020A324A0000-0x0000020A324B0000-memory.dmp