Analysis

  • max time kernel
    142s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    05/10/2020, 12:01

General

  • Target
    Urgent Inquiry-1911INQ0059.exe
  • Size 631KB
  • Sample201005-p9kkplneyx
  • SHA256 4a4f7d774032e80c392ff7fe598a05736cf4f71dc0dcf5616ce980f9cbb598ae
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.fsqcs.com.au

  • Port

    587

  • Password

    oVVnNxsRqpKk

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry-1911INQ0059.exe
    "C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry-1911INQ0059.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry-1911INQ0059.exe
      "{path}"
      2⤵
        PID:1620
      • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry-1911INQ0059.exe
        "{path}"
        2⤵
          PID:2012
        • C:\Users\Admin\AppData\Local\Temp\Urgent Inquiry-1911INQ0059.exe
          "{path}"
          2⤵
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: RenamesItself
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1980

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/112-0-0x0000000074780000-0x0000000074E6E000-memory.dmp

            memory/112-1-0x00000000002C0000-0x00000000002C1000-memory.dmp

            memory/112-3-0x0000000000380000-0x0000000000384000-memory.dmp

            memory/112-4-0x0000000004E10000-0x0000000004E80000-memory.dmp

            memory/112-5-0x0000000005620000-0x0000000005689000-memory.dmp

            memory/1980-6-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/1980-8-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/1980-9-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/1980-10-0x0000000074780000-0x0000000074E6E000-memory.dmp