Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    22/02/2022, 20:50

General

  • Target

    0b76b9230ea858e5c5a1c360ffa57f8c5b4e1d3edfc86f16f5f8a8d810e2740c.exe

  • Size

    1.6MB

  • MD5

    ff3fe4fe833b4f463bee3ef01057bf3a

  • SHA1

    7eb61441d0d14117c05edbbff96bedf438561b67

  • SHA256

    0b76b9230ea858e5c5a1c360ffa57f8c5b4e1d3edfc86f16f5f8a8d810e2740c

  • SHA512

    91d7b35777afd433b250fc1a601a172440270be2e50af55f3e035e503c5f4a61ee2a131bd19c77611beaa7262cc9fa6cef16dea23f68497c833d95c5f6bb523c

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    asa112233

Signatures

  • HawkEye

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

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b76b9230ea858e5c5a1c360ffa57f8c5b4e1d3edfc86f16f5f8a8d810e2740c.exe
    "C:\Users\Admin\AppData\Local\Temp\0b76b9230ea858e5c5a1c360ffa57f8c5b4e1d3edfc86f16f5f8a8d810e2740c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\3466\3466.exe
      "C:\Users\Admin\AppData\Local\Temp\3466\3466.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • 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:1772
        • 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"
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:1960
        • 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"
          4⤵
            PID:980

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/980-77-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/980-80-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1064-63-0x0000000000750000-0x0000000000751000-memory.dmp

            Filesize

            4KB

          • memory/1064-64-0x0000000074252000-0x0000000074254000-memory.dmp

            Filesize

            8KB

          • memory/1064-62-0x0000000074251000-0x0000000074252000-memory.dmp

            Filesize

            4KB

          • memory/1472-54-0x0000000076151000-0x0000000076153000-memory.dmp

            Filesize

            8KB

          • memory/1772-70-0x00000000021F0000-0x00000000021F1000-memory.dmp

            Filesize

            4KB

          • memory/1772-69-0x0000000074251000-0x0000000074252000-memory.dmp

            Filesize

            4KB

          • memory/1772-71-0x0000000074252000-0x0000000074254000-memory.dmp

            Filesize

            8KB

          • memory/1772-75-0x0000000002206000-0x0000000002207000-memory.dmp

            Filesize

            4KB

          • memory/1960-73-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1960-76-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB