Analysis

  • max time kernel
    119s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    29/06/2020, 18:08

General

  • Target
    PO.exe
  • Size 435KB
  • Sample200629-fe3h25h8ce
  • SHA256 404d422ffb09a4f24ad333ccdd211d0eb2ea84b650f095baadf3443fb6deb7b1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.condeunt.com

  • Port

    587

  • Password

    EM(ufuT3

Signatures

  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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.

  • AgentTesla

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3384
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YchbTZZKkVZKFJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF085.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:540
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:648
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer / v NoRun / t REG_DWORD / d 1 / f
        3⤵
        • Modifies registry key
        PID:1908

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/648-2-0x0000000000400000-0x000000000044C000-memory.dmp