Analysis

  • max time kernel
    137s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04/03/2021, 17:13

General

  • Target

    0304_87496944093261.doc

  • Size

    743KB

  • MD5

    2e76ea73f95afb9893a3e8bfd622b94d

  • SHA1

    d0f67a997a35d24f17829b56b71274b6a9cc1aec

  • SHA256

    f096841c886b3752e0be947526ee7029860badb6af5f56cc9bfff77023f03584

  • SHA512

    f7775ff1f1a4163db7d5b1ec514e6c55a312c079215dc5d1eb8729f1307d13d6ce166d13ba53cf13731c7280838e08b73616892648fe3a541376adfab148bd5b

Malware Config

Extracted

Family

hancitor

Botnet

0403_nores34

C2

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

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

http://publearysuc.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.

  • 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 10 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\0304_87496944093261.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:3928
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1096
      • C:\Windows\System32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,MUSWRRVXHJV
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2116
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\local\temp\Static.dll,MUSWRRVXHJV
          3⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4028
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\System32\svchost.exe
            4⤵
              PID:2428

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1096-8-0x0000000002850000-0x0000000002951000-memory.dmp

              Filesize

              1.0MB

            • memory/3928-5-0x00007FF8C5770000-0x00007FF8C5780000-memory.dmp

              Filesize

              64KB

            • memory/3928-6-0x0000022A732E0000-0x0000022A73917000-memory.dmp

              Filesize

              6.2MB

            • memory/3928-2-0x00007FF8C5770000-0x00007FF8C5780000-memory.dmp

              Filesize

              64KB

            • memory/3928-4-0x00007FF8C5770000-0x00007FF8C5780000-memory.dmp

              Filesize

              64KB

            • memory/3928-3-0x00007FF8C5770000-0x00007FF8C5780000-memory.dmp

              Filesize

              64KB

            • memory/4028-13-0x0000000074000000-0x000000007400A000-memory.dmp

              Filesize

              40KB

            • memory/4028-14-0x0000000000410000-0x0000000000411000-memory.dmp

              Filesize

              4KB