Analysis

  • max time kernel
    150s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/07/2024, 14:07

General

  • Target

    462553aa8f39287b70dd2bc697675e76_JaffaCakes118.exe

  • Size

    235KB

  • MD5

    462553aa8f39287b70dd2bc697675e76

  • SHA1

    9dd6d120153dea5c317f468b42f7e74ec66d60d7

  • SHA256

    d278de0e1b92eface1a35036bb0080c7c79aae563362fe8529b361ec00f37da1

  • SHA512

    0f2475ca64e6a9cefb2b86064272d03679a5df6fbe57b27224a79cd4ac2f2092da289bc58b7223a607366f5d3d695b855daeb367d90c3805f58ccf28a23b19c6

  • SSDEEP

    3072:h/phFZX3hy/OxIIsrurCSGsvCmUMnyPhF3xpAbCoxW8P19POcx3H1lItri:hPrYUICV6mUMKhFhpOzf19Pvh7im

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Alternate1

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 7 IoCs
  • Modifies registry class 20 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\462553aa8f39287b70dd2bc697675e76_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\462553aa8f39287b70dd2bc697675e76_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\s3rver.exe
      C:\Users\Admin\AppData\Local\Temp\s3rver.exe
      2⤵
      • Disables RegEdit via registry modification
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3876
      • C:\Windows\SYSTEM32\REG.exe
        REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • Modifies registry key
        PID:1668
      • C:\Windows\SYSTEM32\RunDll32.exe
        RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2
        3⤵
        • Modifies Internet Explorer settings
        • Modifies data under HKEY_USERS
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2272
        • C:\Windows\system32\rundll32.exe
          C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:2 WinX:0 WinY:0 IEFrame:0000000000000000
          4⤵
          • Modifies data under HKEY_USERS
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          PID:748
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "EnableFirewall" /t REG_DWORD /d "0" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4992
        • C:\Windows\system32\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "EnableFirewall" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies registry key
          PID:1432
      • C:\Users\Admin\AppData\Local\Temp\Bkcpy1.exe
        C:\Users\Admin\AppData\Local\Temp\Bkcpy1.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3864

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\s3rver.exe

          Filesize

          235KB

          MD5

          462553aa8f39287b70dd2bc697675e76

          SHA1

          9dd6d120153dea5c317f468b42f7e74ec66d60d7

          SHA256

          d278de0e1b92eface1a35036bb0080c7c79aae563362fe8529b361ec00f37da1

          SHA512

          0f2475ca64e6a9cefb2b86064272d03679a5df6fbe57b27224a79cd4ac2f2092da289bc58b7223a607366f5d3d695b855daeb367d90c3805f58ccf28a23b19c6

        • memory/2440-26-0x00007FFCB74E5000-0x00007FFCB74E6000-memory.dmp

          Filesize

          4KB

        • memory/2440-28-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-3-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-4-0x000000001C0C0000-0x000000001C58E000-memory.dmp

          Filesize

          4.8MB

        • memory/2440-5-0x000000001C6D0000-0x000000001C76C000-memory.dmp

          Filesize

          624KB

        • memory/2440-6-0x000000001BA50000-0x000000001BA58000-memory.dmp

          Filesize

          32KB

        • memory/2440-7-0x000000001C830000-0x000000001C87C000-memory.dmp

          Filesize

          304KB

        • memory/2440-8-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-9-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-1-0x000000001BB40000-0x000000001BBE6000-memory.dmp

          Filesize

          664KB

        • memory/2440-27-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-0-0x00007FFCB74E5000-0x00007FFCB74E6000-memory.dmp

          Filesize

          4KB

        • memory/2440-2-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/2440-25-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-16-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-20-0x0000000021410000-0x0000000021472000-memory.dmp

          Filesize

          392KB

        • memory/3876-30-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-15-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-14-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-18-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-29-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-17-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-31-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-32-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB

        • memory/3876-33-0x00007FFCB7230000-0x00007FFCB7BD1000-memory.dmp

          Filesize

          9.6MB