Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    10/03/2022, 02:33

General

  • Target

    6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe

  • Size

    506KB

  • MD5

    3750a882d6c8cfcd5a9e883311624df3

  • SHA1

    28a1dd4675a65f7046c8aea5497d9ece3473e194

  • SHA256

    6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb

  • SHA512

    2d3d015491dcebbe54d8f3a74f08ce0151fa836dbd75fffb66b1bd603adb0bddf3a0f6345bbe6a0e4e7babbef5f7d06084814c11220720285c2bf1fd98e3f049

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    wafdandan

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe
    "C:\Users\Admin\AppData\Local\Temp\6d10dd70b8dceb476ce2710a4cac4ce80006dd7c59469b9db4a55e5e5b0dbbbb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:796
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1620
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        3⤵
          PID:1736

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/268-62-0x0000000074B70000-0x000000007511B000-memory.dmp

            Filesize

            5.7MB

          • memory/268-63-0x0000000001D90000-0x0000000001D91000-memory.dmp

            Filesize

            4KB

          • memory/268-65-0x0000000001DA6000-0x0000000001DA7000-memory.dmp

            Filesize

            4KB

          • memory/268-66-0x0000000001D95000-0x0000000001DA6000-memory.dmp

            Filesize

            68KB

          • memory/796-57-0x0000000074B70000-0x000000007511B000-memory.dmp

            Filesize

            5.7MB

          • memory/796-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

            Filesize

            8KB

          • memory/796-56-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

            Filesize

            4KB

          • memory/796-55-0x0000000074B70000-0x000000007511B000-memory.dmp

            Filesize

            5.7MB

          • memory/1620-67-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1620-70-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1736-71-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1736-74-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB