Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 04:07

General

  • Target

    4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe

  • Size

    272KB

  • MD5

    4b55573076f0b1e6287a1067d471bea9

  • SHA1

    3f603d6b8cd9a685794f8c052d0c8ffee54e5c19

  • SHA256

    e299df6b42c78a677d6badf54a009e46a0f544e677ba30210449bac1190aa13d

  • SHA512

    8e3d975145e36be3e8e0316d4330806c56c3b7dc90bb259417dee70556e1d0ea95c6e57e3050c3b619e3c4481df84bc4a2096a8dbc74091824536d44ff651ef0

  • SSDEEP

    6144:qovD4aUeckJjPEvyVEowgHzUeKNbTeoQQQR:XDwWjMvC9wguyoQQQR

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 10 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 15 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:936
    • C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe"
        3⤵
        • Adds policy Run key to start application
        • Boot or Logon Autostart Execution: Active Setup
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1036
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2832
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4084
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\4b55573076f0b1e6287a1067d471bea9_JaffaCakes118.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:216
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:884
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:3240
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\slass.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\slass.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5088
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\slass.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\slass.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2812

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • memory/1440-20-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-35-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-9-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-7-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-11-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-62-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-19-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-18-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-45-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-25-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-21-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-29-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-32-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-42-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1440-39-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/2324-2-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/2324-4-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/2324-16-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB