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Analysis

  • max time kernel
    103s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2023, 19:31

General

  • Target

    064bb054746f0e36d8231a272d70980d.xls

  • Size

    173KB

  • MD5

    064bb054746f0e36d8231a272d70980d

  • SHA1

    4a21a7d20ca174a91a1c49d8885f9be0c5d20a4a

  • SHA256

    4bdee72a162f40422dfce6ac2d01ac25075bf1d0e6f641b27dea6858b092cee9

  • SHA512

    1d3cf8b37be6f5281e39f2b7ddfee3fe6a48f41d4704c39b1b901ce7d5b8d5573ec16e2f6ebebb78b33267b1d104fa390c527ed22ab6ed483fdfbc88188156a2

  • SSDEEP

    3072:0+IH1OxQKxy5gfaf8kDfsQmN3psWUZZR/Qse7sUguglgAQ3NRSw/JtXwkDKSZ:0+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 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\064bb054746f0e36d8231a272d70980d.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:4396
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:396
      • 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:4968
        • C:\Windows\system32\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:2684
      • 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:372
      • 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:5008
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:3008

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4396-145-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-136-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-137-0x00007FF9617E0000-0x00007FF9617F0000-memory.dmp

        Filesize

        64KB

      • memory/4396-138-0x00007FF9617E0000-0x00007FF9617F0000-memory.dmp

        Filesize

        64KB

      • memory/4396-135-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-134-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-133-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-132-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-146-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-147-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB

      • memory/4396-148-0x00007FF963870000-0x00007FF963880000-memory.dmp

        Filesize

        64KB