Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    17/11/2020, 12:09

General

  • Target
    54d657c9a3d9b7b41c8d6c3c351e8e00.exe
  • Size 960KB
  • Sample201117-b8csk8cn4j
  • SHA256 7907686d20104808021d5d4130039fed4fc7946ebc48d6e554bfcf01e69edfae
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.ilkimegitim.com

  • Port

    587

  • Password

    Savas581

Signatures

  • HawkEye

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

  • UPX packed file 3 IoCs

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1694 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe
    "C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe
      "C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:640
      • 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⤵
          PID:2216
        • 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:3700
        • C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe
          "C:\Users\Admin\AppData\Local\Temp\54d657c9a3d9b7b41c8d6c3c351e8e00.exe" 2 640 259297375
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2932

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/640-1-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/640-4-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/640-5-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/640-7-0x00000000022C0000-0x0000000002348000-memory.dmp

            memory/640-8-0x00000000023E2000-0x00000000023E3000-memory.dmp

            memory/1400-0-0x0000000000400000-0x00000000004F6000-memory.dmp

            memory/2216-11-0x0000000000400000-0x000000000041B000-memory.dmp

            memory/2216-9-0x0000000000400000-0x000000000041B000-memory.dmp

            memory/2932-6-0x0000000000400000-0x00000000004F6000-memory.dmp

            memory/3700-12-0x0000000000400000-0x0000000000458000-memory.dmp

            memory/3700-14-0x0000000000400000-0x0000000000458000-memory.dmp