Analysis

  • max time kernel
    135s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    17/09/2020, 12:12

General

  • Target
    PO#ZT20-09.exe
  • Size 824KB
  • Sample200917-lbr5vdtaca
  • SHA256 614052880e43375009bd02fcb10e8399d2e855cff58fc27ad94711dee1973186
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.vasudeva.in

  • Port

    587

  • Password

    fK;Ham+t#DpR;T?jQ;

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#ZT20-09.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#ZT20-09.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3740
    • C:\Users\Admin\AppData\Local\Temp\PO#ZT20-09.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2616-9-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2616-19-0x00000000011F0000-0x00000000011F1000-memory.dmp

        memory/2616-17-0x0000000006020000-0x0000000006021000-memory.dmp

        memory/2616-16-0x0000000005F90000-0x0000000005F91000-memory.dmp

        memory/2616-11-0x0000000073B90000-0x000000007427E000-memory.dmp

        memory/3740-4-0x00000000054D0000-0x00000000054D1000-memory.dmp

        memory/3740-8-0x0000000008700000-0x000000000874B000-memory.dmp

        memory/3740-7-0x0000000006100000-0x0000000006149000-memory.dmp

        memory/3740-6-0x0000000005430000-0x0000000005433000-memory.dmp

        memory/3740-5-0x0000000005570000-0x0000000005571000-memory.dmp

        memory/3740-0-0x0000000073B90000-0x000000007427E000-memory.dmp

        memory/3740-3-0x0000000005930000-0x0000000005931000-memory.dmp

        memory/3740-1-0x0000000000A10000-0x0000000000A11000-memory.dmp