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Analysis

  • max time kernel
    141s
  • max time network
    151s
  • 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, 19:30

General

  • Target

    7600e46b1ad89168e4315759068fc55a.xls

  • Size

    173KB

  • MD5

    7600e46b1ad89168e4315759068fc55a

  • SHA1

    3967e02c4126829e6a276918a4ce4af2b121da05

  • SHA256

    efb42b166ff6fa0da650c32c247047daa397a08cebb9cae0c7034a4a3e1b1c6f

  • SHA512

    563cf02c05e055a3c4e0fdd3c9c5bed3ac6554fbcb87a1c9e732d06dd2afaab3db001f6c5a2dd53cdc378880ac480a9d788f3b59bf0f4507366c0f2a5c638e8f

  • SSDEEP

    3072:8+IH1OxQKxy5gfaf8kDfsQmN3psWUZZR/Qse7sUguglgAQ3NRSw/JtXwkDKSZ:8+IH1OxQKxy5gfaf8kDfsQmN3psWUZZY

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 16 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\7600e46b1ad89168e4315759068fc55a.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:4832
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:3404
      • 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:4588
        • C:\Windows\system32\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:3732
      • 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:3916
      • 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:3564
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:2432

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4832-136-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-138-0x00007FFF30040000-0x00007FFF30050000-memory.dmp

        Filesize

        64KB

      • memory/4832-137-0x00007FFF30040000-0x00007FFF30050000-memory.dmp

        Filesize

        64KB

      • memory/4832-132-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-135-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-134-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-133-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-145-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-147-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-146-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB

      • memory/4832-148-0x00007FFF32450000-0x00007FFF32460000-memory.dmp

        Filesize

        64KB