Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    29/08/2024, 17:55

General

  • Target

    c953222f86f5148c82825b3f4d948977_JaffaCakes118.exe

  • Size

    3.5MB

  • MD5

    c953222f86f5148c82825b3f4d948977

  • SHA1

    dce82a6b2bd843eea0abeb4ef83ba8fc8c5db608

  • SHA256

    f511e3a06796a1e2fd43ef59808dc03609b0e38c616ed563536e8d3a95c20c02

  • SHA512

    c077935401fbeb3afe3564beddee8be9b3ef61c7caae4ceb778c5f2cf71edecf38caec480390f19cea7a8751b29783ff73a242e4838e8da61420fc996150e5c8

  • SSDEEP

    98304:zbyTascPJTCDjHhwshkU2tkfCYF3szta67p:zWaHJGXctq12a67

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 3 IoCs
  • Drops file in Windows 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.

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c953222f86f5148c82825b3f4d948977_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c953222f86f5148c82825b3f4d948977_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2748
    • 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
      • System Location Discovery: System Language Discovery
      PID:2768
    • 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
      • System Location Discovery: System Language Discovery
      PID:2776
    • 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
      • System Location Discovery: System Language Discovery
      PID:2928
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram C:\windows\system\system.exe RPCCC
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2672

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2688-0-0x0000000000400000-0x00000000008FF000-memory.dmp

          Filesize

          5.0MB

        • memory/2688-1-0x0000000000220000-0x0000000000222000-memory.dmp

          Filesize

          8KB

        • memory/2688-2-0x0000000000310000-0x0000000000311000-memory.dmp

          Filesize

          4KB

        • memory/2688-3-0x0000000000400000-0x00000000008FF000-memory.dmp

          Filesize

          5.0MB

        • memory/2688-4-0x0000000000220000-0x0000000000222000-memory.dmp

          Filesize

          8KB

        • memory/2688-6-0x0000000000310000-0x0000000000311000-memory.dmp

          Filesize

          4KB

        • memory/2688-11-0x0000000000400000-0x00000000008FF000-memory.dmp

          Filesize

          5.0MB

        • memory/2688-16-0x0000000000400000-0x00000000008FF000-memory.dmp

          Filesize

          5.0MB