Analysis

  • max time kernel
    142s
  • max time network
    23s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    15/07/2020, 13:05

General

  • Target
    PO.exe
  • Size 363KB
  • Sample200715-dxex2zwems
  • SHA256 0997df6c23c47188146000e04ad399b7ccfdbe3e9cfceed18b232b712088adee
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.oxse.in

  • Port

    587

  • Password

    dhruv_varship5553

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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZpoPisGBo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52FF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1836
    • C:\Users\Admin\AppData\Local\Temp\PO.exe
      "C:\Users\Admin\AppData\Local\Temp\PO.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:1804

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1804-4-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1804-6-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1804-7-0x0000000000400000-0x000000000044C000-memory.dmp