Analysis

  • max time kernel
    148s
  • max time network
    64s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    06/05/2020, 13:44

General

  • Target
    PO .pdf.exe
  • Size 465KB
  • Sample200506-8b7wef4dwe
  • SHA256 de424e79273b01addb5848344ecf859fcc44375bf8ecc26bf1f371ef80c96ec0
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.ru

  • Port

    587

  • Password

    kingmoney12345

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Suspicious use of WriteProcessMemory 20 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO .pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO .pdf.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FLdsyDwldAjJd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9565.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:516
    • C:\Users\Admin\AppData\Local\Temp\PO .pdf.exe
      "{path}"
      2⤵
        PID:820
      • C:\Users\Admin\AppData\Local\Temp\PO .pdf.exe
        "{path}"
        2⤵
          PID:868
        • C:\Users\Admin\AppData\Local\Temp\PO .pdf.exe
          "{path}"
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetWindowsHookEx
          PID:916
          • C:\Windows\SysWOW64\netsh.exe
            "netsh" wlan show profile
            3⤵
              PID:3920

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/916-3-0x0000000000400000-0x0000000000452000-memory.dmp