Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03/03/2021, 14:30

General

  • Target

    0303_7987150656181.doc

  • Size

    775KB

  • MD5

    a6a62c994891464d42307d946f7c770e

  • SHA1

    99d5b3df9e3cc14b7aa46f8da393443f51da743e

  • SHA256

    1cdb6e242c5166d15c994c0472d1d14548ce660e6c1f30c156a944b690b5946c

  • SHA512

    795c408f08797374ebfa692bfb56fd9eb373bc690487c79cf663a6e005713ecabe386ed730fc93b4542a1eaf508bb88023965958431d1b8bfafec90962e346d2

Malware Config

Extracted

Family

hancitor

Botnet

0303_trew30

C2

http://mainctional.com/8/forum.php

http://disrulaytin.ru/8/forum.php

http://puldefletat.ru/8/forum.php

Signatures

  • Hancitor

    Hancitor is downloader used to deliver other malware families.

  • 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 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0303_7987150656181.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:4224
      • C:\Windows\System32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,WIOYJIOLYGA
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2156
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,WIOYJIOLYGA
          3⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:556
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\System32\svchost.exe
            4⤵
              PID:3508

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/556-14-0x0000000002E00000-0x0000000002E01000-memory.dmp

              Filesize

              4KB

            • memory/556-13-0x0000000073720000-0x000000007372A000-memory.dmp

              Filesize

              40KB

            • memory/3508-17-0x0000000000400000-0x0000000000448000-memory.dmp

              Filesize

              288KB

            • memory/3508-15-0x0000000000400000-0x0000000000448000-memory.dmp

              Filesize

              288KB

            • memory/4224-8-0x00000000021C0000-0x00000000022C1000-memory.dmp

              Filesize

              1.0MB

            • memory/4768-3-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

              Filesize

              64KB

            • memory/4768-4-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

              Filesize

              64KB

            • memory/4768-2-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

              Filesize

              64KB

            • memory/4768-5-0x00007FF942050000-0x00007FF942687000-memory.dmp

              Filesize

              6.2MB

            • memory/4768-6-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

              Filesize

              64KB