Analysis

  • max time kernel
    137s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    12/07/2020, 08:02

General

  • Target
    PO-0561.exe
  • Size 504KB
  • Sample200712-5f8xttkjha
  • SHA256 5d59c9bb9c6ebb150f716776fc8ff2c047ab639454787e48553044d3bb4be9b1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    Sages101*

Signatures

  • Suspicious use of WriteProcessMemory 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • AgentTesla

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-0561.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-0561.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    PID:992
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AfuRrZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF98.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4000
    • C:\Users\Admin\AppData\Local\Temp\PO-0561.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3996
  • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    1⤵
      PID:1556

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3996-2-0x0000000000400000-0x000000000044C000-memory.dmp