Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/07/2024, 13:52

General

  • Target

    41f2417a047641acf1c5fa6abc75425f_JaffaCakes118.exe

  • Size

    3.6MB

  • MD5

    41f2417a047641acf1c5fa6abc75425f

  • SHA1

    77d4804e045aa54c181fb7b7ca36eb4bc140220b

  • SHA256

    35343f917ca5b8ad992523af353ac610eb547076bde1e347696fb1414c42dab7

  • SHA512

    9ce293a406fb05faca004dcd7e827f4156504aa970a098dc4992bdb85e2be4e53555778b3f8f6b9570e391773e3cd023c2c5667bf27e9754610a8140e2fa606e

  • SSDEEP

    49152:kTw99ur0vQxpFYMOUJ0/axErfys6KOFXraawsVggOEU8KRctyOhcyhJFpw:mWDvQ9ROUiyDHUawsVggOEUbRxscyv

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Stops running service(s) 4 TTPs
  • Uses Session Manager for persistence 2 TTPs 3 IoCs

    Creates Session Manager registry key to run executable early in system boot.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41f2417a047641acf1c5fa6abc75425f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\41f2417a047641acf1c5fa6abc75425f_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4408
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      PID:3004
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:1552
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:2300
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:4576
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram C:\Arquivos de Programas\windows32.exe RPCCC
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:1416

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • memory/1480-0-0x0000000000400000-0x0000000001482000-memory.dmp

          Filesize

          16.5MB

        • memory/1480-1-0x0000000003440000-0x0000000003441000-memory.dmp

          Filesize

          4KB

        • memory/1480-3-0x0000000000400000-0x0000000001482000-memory.dmp

          Filesize

          16.5MB

        • memory/1480-4-0x0000000003440000-0x0000000003441000-memory.dmp

          Filesize

          4KB