Analysis

  • max time kernel
    139s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03/03/2021, 16:16

General

  • Target

    0303_15995446253021.doc

  • Size

    775KB

  • MD5

    f0997b178d0a74aaf3e00089fe30624f

  • SHA1

    b79f4f71dbd4043ae71795e91f6e85b2af957a32

  • SHA256

    8770f445c501edf62c9bdf28143e6da5b55d493cac5797b6ecdd81775f76e0da

  • SHA512

    bfa79cff532419a307ce780d4d8ce270adce30c77377ee3a6bd426850507c4736566cfde632875d6d2c139b8c5c27d821e408edf7a7a2fd4bfaee33844d5b960

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_15995446253021.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:972
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1344
      • 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:2324
        • 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:2388
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\System32\svchost.exe
            4⤵
              PID:2260

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/972-5-0x00007FFA46D50000-0x00007FFA46D60000-memory.dmp

              Filesize

              64KB

            • memory/972-6-0x0000023345250000-0x0000023345887000-memory.dmp

              Filesize

              6.2MB

            • memory/972-7-0x00007FFA432E0000-0x00007FFA432F0000-memory.dmp

              Filesize

              64KB

            • memory/972-2-0x00007FFA46D50000-0x00007FFA46D60000-memory.dmp

              Filesize

              64KB

            • memory/972-4-0x00007FFA46D50000-0x00007FFA46D60000-memory.dmp

              Filesize

              64KB

            • memory/972-3-0x00007FFA46D50000-0x00007FFA46D60000-memory.dmp

              Filesize

              64KB

            • memory/1344-9-0x0000000002370000-0x0000000002471000-memory.dmp

              Filesize

              1.0MB

            • memory/2260-16-0x0000000000400000-0x0000000000448000-memory.dmp

              Filesize

              288KB

            • memory/2260-18-0x0000000000400000-0x0000000000448000-memory.dmp

              Filesize

              288KB

            • memory/2388-15-0x0000000000610000-0x0000000000611000-memory.dmp

              Filesize

              4KB

            • memory/2388-14-0x0000000073E80000-0x0000000073E8A000-memory.dmp

              Filesize

              40KB