Analysis

  • max time kernel
    141s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    13/07/2020, 06:43

General

  • Target
    MV AGRIA CALLING CHANGSHU AGENCY APPOINTMENT.exe
  • Size 497KB
  • Sample200713-9nlhe85zh2
  • SHA256 a58fc8e96f20e803cf01cffd2ca566ef4ec82ceca97f116aee211008f3f6a6e1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.privateemail.com

  • Port

    587

  • Password

    iwuoha241@

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV AGRIA CALLING CHANGSHU AGENCY APPOINTMENT.exe
    "C:\Users\Admin\AppData\Local\Temp\MV AGRIA CALLING CHANGSHU AGENCY APPOINTMENT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:240
    • C:\Users\Admin\AppData\Local\Temp\MV AGRIA CALLING CHANGSHU AGENCY APPOINTMENT.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1848

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1848-2-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1848-4-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/1848-5-0x0000000000400000-0x000000000044C000-memory.dmp