Analysis

  • max time kernel
    139s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    10/07/2020, 13:35

General

  • Target
    shipping invoic.pdf.exe
  • Size 433KB
  • Sample200710-q3da2ea5hn
  • SHA256 a0fa5e8d28d67d9c239fddc6b9c859eb0ca04275b9ed043adcd9cafbebcb5600
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

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.

  • AgentTesla Payload 4 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\shipping invoic.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\shipping invoic.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\shipping invoic.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1820

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1820-2-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1820-4-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1820-5-0x0000000000400000-0x000000000044C000-memory.dmp