Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 15:52

General

  • Target

    8378669bb680e8f9f1b119af478bd7f1_JaffaCakes118.exe

  • Size

    32KB

  • MD5

    8378669bb680e8f9f1b119af478bd7f1

  • SHA1

    5451fd915ff5c3a89a4c003e55122cd94fe985a5

  • SHA256

    dcff17166a640b9230c5bc8f0eeeec4160f3f4ffff09e430a010c7d8ab67fc54

  • SHA512

    edffe6511ea44485664cc553ab658b103fc5d012cbf8a94ef2759fc3f59ed6fcdbaf088617352645984d13eb2e1d8d737d2573e7e97befcc641f93b395ae32a9

  • SSDEEP

    768:7DpPPPPPf1nCl0cUl4VFINpZWq+HfB8sWZ3U2xrPaaTOKtBbC:7DpPPPPPfQ0ZoIlAHkZEyrPaaTO+h

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • 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.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8378669bb680e8f9f1b119af478bd7f1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8378669bb680e8f9f1b119af478bd7f1_JaffaCakes118.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1248
    • \??\c:\windows\SysWOW64\wuaucldt.exe
      c:\windows\system32\wuaucldt.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4780
      • \??\c:\users\admin\wuaucldt.exe
        c:\users\admin\wuaucldt.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3964
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          PID:2244
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del c:\windows\syswow64\wuaucldt.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3752
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del c:\users\admin\appdata\local\temp\837866~1.EXE
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3480

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \??\c:\windows\SysWOW64\wuaucldt.exe

          Filesize

          32KB

          MD5

          8378669bb680e8f9f1b119af478bd7f1

          SHA1

          5451fd915ff5c3a89a4c003e55122cd94fe985a5

          SHA256

          dcff17166a640b9230c5bc8f0eeeec4160f3f4ffff09e430a010c7d8ab67fc54

          SHA512

          edffe6511ea44485664cc553ab658b103fc5d012cbf8a94ef2759fc3f59ed6fcdbaf088617352645984d13eb2e1d8d737d2573e7e97befcc641f93b395ae32a9

        • memory/1248-0-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1248-1-0x0000000009000000-0x0000000009009000-memory.dmp

          Filesize

          36KB

        • memory/1248-3-0x0000000070000000-0x000000007000B000-memory.dmp

          Filesize

          44KB

        • memory/1248-2-0x0000000009000000-0x0000000009009000-memory.dmp

          Filesize

          36KB

        • memory/1248-58-0x0000000070000000-0x000000007000B000-memory.dmp

          Filesize

          44KB

        • memory/1248-57-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2244-20-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/2244-19-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/2244-21-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/2244-24-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/2244-25-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/2244-26-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

          Filesize

          36KB

        • memory/3964-17-0x0000000070000000-0x000000007000B000-memory.dmp

          Filesize

          44KB

        • memory/4780-9-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/4780-61-0x0000000070000000-0x000000007000B000-memory.dmp

          Filesize

          44KB