Analysis

  • max time kernel
    123s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    06/11/2021, 02:25

General

  • Target
    exploit.docx
  • Size 60KB
  • Sample211106-cwat2saebl
  • SHA256 59e08d42ce495f290c4dfd7be9614f786cdfed3ebdd7d6e68accbb630c051083
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • metasploit

Version
  • windows/download_exec

C2
  • http://47.94.236.117:9999/aDBu

Attributes
  • headers User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET4.0C; .NET4.0E)

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • 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 2 IoCs
  • Abuses OpenXML format to download file from external location 2 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 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\exploit.docx"
    1⤵
    • Abuses OpenXML format to download file from external location
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1088
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\\SysWOW64\\rundll32.exe
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        PID:996

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/996-102-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-101-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-63-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-860-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-64-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-68-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-69-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-70-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-71-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-72-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-73-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-74-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-76-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-75-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-77-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-79-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-78-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-80-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-81-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-82-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-83-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-85-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-84-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-86-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-88-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-87-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-107-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-108-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-106-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-105-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-62-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-104-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-94-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-103-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-100-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-99-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-98-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-97-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-96-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-95-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-61-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-109-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-93-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-92-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-91-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-90-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-110-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-89-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-111-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-112-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-113-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-114-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-115-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-116-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-117-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-119-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/996-118-0x00000000000D0000-0x00000000000D1000-memory.dmp

          memory/1088-60-0x000007FEFBA61000-0x000007FEFBA63000-memory.dmp

          memory/1236-55-0x0000000072601000-0x0000000072604000-memory.dmp

          memory/1236-56-0x0000000070081000-0x0000000070083000-memory.dmp

          memory/1236-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1236-58-0x0000000075191000-0x0000000075193000-memory.dmp