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Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2023, 19:31

General

  • Target

    201f6d54b339db3e7972279feeca2726.xls

  • Size

    182KB

  • MD5

    201f6d54b339db3e7972279feeca2726

  • SHA1

    9a8fcadf3a03846bff5f47a65254c0beb9a12f54

  • SHA256

    dbd47ca15fbb20a66916514bf43e589a47d7a84a6c26246d39e5c219c3bb9544

  • SHA512

    ddda097e84c2d395a4c1ffb3d34533d64a4b79f9a2808d4eed3db30bab3db1a73b6ca55346e686747bf61d2b412d44a8ea99c0d52fe8a9d1986029cc5e3405cb

  • SSDEEP

    3072:EOk3hOdsylKlgryzc4bNhZFGzE+cL2knX/QfeW7OglgAF3NRKE0JtXw7gQpRyT:EOk3hOdsylKlgryzc4bNhZF+E+W2knXS

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\201f6d54b339db3e7972279feeca2726.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2116
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Windows\system32\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:3164
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        PID:1424
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        PID:4344
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:1888

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4440-136-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-138-0x00007FF82C530000-0x00007FF82C540000-memory.dmp

        Filesize

        64KB

      • memory/4440-137-0x00007FF82C530000-0x00007FF82C540000-memory.dmp

        Filesize

        64KB

      • memory/4440-132-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-135-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-134-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-133-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-145-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-146-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-147-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB

      • memory/4440-148-0x00007FF82E9F0000-0x00007FF82EA00000-memory.dmp

        Filesize

        64KB