Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    03/07/2020, 12:25

General

  • Target
    order03JUL2020309557.exe
  • Size 1.1MB
  • Sample200703-ap33rl3a4e
  • SHA256 fd25d39f3f2eeec2ecf1db20ea303f7389a1ed1b703ab6991e656d13811af1a2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    webmail.tos-thailand.com

  • Port

    587

  • Password

    P@ssw0rd

Signatures

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run entry to start application 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • HawkEye

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of WriteProcessMemory 27 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetWindowsHookEx 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe
    "C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe
      "C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2196
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Adds Run entry to start application
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          • Deletes itself
          • Suspicious use of SetWindowsHookEx
          PID:2508
          • 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"
            5⤵
              PID:1688
            • 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"
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1384

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1384-22-0x0000000000400000-0x0000000000458000-memory.dmp

          memory/1384-20-0x0000000000400000-0x0000000000458000-memory.dmp

          memory/1688-17-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/1688-19-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/1988-5-0x0000000000A92000-0x0000000000A93000-memory.dmp

          memory/1988-4-0x0000000002250000-0x00000000022D8000-memory.dmp

          memory/1988-3-0x0000000000400000-0x000000000051D000-memory.dmp

          memory/1988-2-0x0000000000400000-0x000000000051D000-memory.dmp

          memory/1988-0-0x0000000000400000-0x000000000051D000-memory.dmp

          memory/2508-14-0x00000000022E0000-0x0000000002368000-memory.dmp

          memory/2508-15-0x0000000002242000-0x0000000002243000-memory.dmp