Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 10:30

General

  • Target

    a38d7362ce3de868db7a0aff5065b93f.xls

  • Size

    114KB

  • MD5

    a38d7362ce3de868db7a0aff5065b93f

  • SHA1

    eef63da30700cc9b69ce06455b22a4a11dc3bb79

  • SHA256

    13b9e47e1e882aa27b3208f93c58f546e746a03908275bf6a788307956bc57c7

  • SHA512

    add23fcbeaf923427a8a4d9f84d0520369a85e44fcc6a42b68834aa81b22c4e0c6f9df986ef8e45864457a68c0753445cc3ab76335e4eccc274dff9e37ef9a43

  • SSDEEP

    3072:6jl6Nc7yRzs1H75wkZUgsQ6NqTBun5oRa8ikW0brzQ7ITkrIjhJtXwCu:Yl6Nc7yRzs1H75wkZUgsQ6NqTBun5oR1

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 4 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 SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 20 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\a38d7362ce3de868db7a0aff5065b93f.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2368
    • 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:1152
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1544
    • 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:1500
    • 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:1296
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\a38d7362ce3de868db7a0aff5065b93f_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1020

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2368-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/2368-1-0x00000000724BD000-0x00000000724C8000-memory.dmp

          Filesize

          44KB

        • memory/2368-2-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-3-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-4-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-5-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-7-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-6-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-8-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-9-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-10-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-11-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-12-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-13-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-14-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-15-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-17-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-16-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-18-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-19-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-20-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-21-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-22-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-23-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-24-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-25-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-26-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-27-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-28-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-29-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-30-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-31-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-32-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-55-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-80-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-104-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-125-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-168-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-173-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-194-0x00000000724BD000-0x00000000724C8000-memory.dmp

          Filesize

          44KB

        • memory/2368-196-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-220-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-241-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-267-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-310-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-313-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-356-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-358-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-360-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-388-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-389-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-390-0x00000000002B0000-0x00000000003B0000-memory.dmp

          Filesize

          1024KB

        • memory/2368-394-0x00000000724BD000-0x00000000724C8000-memory.dmp

          Filesize

          44KB