Analysis

  • max time kernel
    132s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2024, 06:52

General

  • Target

    9b0bb5f9566c58e64705bdcdfbb013b7.xls

  • Size

    184KB

  • MD5

    9b0bb5f9566c58e64705bdcdfbb013b7

  • SHA1

    4e8c2789bd883a97498d1d7efc562e78e04e80f3

  • SHA256

    59c437f3cfbf35ddd6f82cdd6d754467d6cdb764aa3aeaab9c4b1912085953c5

  • SHA512

    31d467876df47bf577c9da7bc617fd62dd81cc5ace588e4b88f199928cba937dadd45bb0b5e5962a51fbbc8f7c82124711db4b38819c57eeaee0e329ee9f6c3d

  • SSDEEP

    3072:z5hh4XPndxzI8ZBbLhfWy5/J+Fej5s/++xeliFXMXgt5hFWVbrzQ7ITk3oXJtXw+:NaPdxzI8ZBvhf99YssRy

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.

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\9b0bb5f9566c58e64705bdcdfbb013b7.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Windows\SysWOW64\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:2128
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:108
    • C:\Windows\SysWOW64\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:1680
    • C:\Windows\SysWOW64\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:2404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2760-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2760-1-0x00000000720DD000-0x00000000720E8000-memory.dmp

    Filesize

    44KB

  • memory/2760-6-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-31-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-39-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-64-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-94-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-123-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-125-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-148-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-170-0x00000000720DD000-0x00000000720E8000-memory.dmp

    Filesize

    44KB

  • memory/2760-171-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-172-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-173-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-174-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-175-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-176-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-177-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-178-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-188-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-224-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-273-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-274-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-276-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-298-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-321-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-350-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-351-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-352-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-353-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-354-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-355-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-356-0x0000000006080000-0x0000000006180000-memory.dmp

    Filesize

    1024KB

  • memory/2760-359-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2760-360-0x00000000720DD000-0x00000000720E8000-memory.dmp

    Filesize

    44KB