Analysis

  • max time kernel
    111s
  • max time network
    104s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    17/08/2020, 06:13

General

  • Target
    dwfLg1nvh9wThDb.exe
  • Size 585KB
  • Sample200817-wej5clf74e
  • SHA256 adbdc4cbb6b8805700fcfd618e763872f6960f5989a62c9cdffc961d9b0f3e39
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.lettu.us

  • Port

    587

  • Password

    western2020@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dwfLg1nvh9wThDb.exe
    "C:\Users\Admin\AppData\Local\Temp\dwfLg1nvh9wThDb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Users\Admin\AppData\Local\Temp\dwfLg1nvh9wThDb.exe
      "C:\Users\Admin\AppData\Local\Temp\dwfLg1nvh9wThDb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3516

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3308-5-0x00000000056D0000-0x00000000056D1000-memory.dmp

        memory/3308-9-0x0000000006430000-0x00000000064AB000-memory.dmp

        memory/3308-4-0x0000000005B30000-0x0000000005B31000-memory.dmp

        memory/3308-0-0x0000000073930000-0x000000007401E000-memory.dmp

        memory/3308-6-0x0000000005570000-0x0000000005571000-memory.dmp

        memory/3308-7-0x0000000005770000-0x0000000005771000-memory.dmp

        memory/3308-3-0x0000000005590000-0x0000000005591000-memory.dmp

        memory/3308-1-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

        memory/3308-8-0x00000000057E0000-0x00000000057E3000-memory.dmp

        memory/3308-10-0x00000000064B0000-0x0000000006507000-memory.dmp

        memory/3516-11-0x0000000000400000-0x000000000044C000-memory.dmp

        memory/3516-14-0x0000000073930000-0x000000007401E000-memory.dmp

        memory/3516-19-0x00000000055D0000-0x00000000055D1000-memory.dmp

        memory/3516-20-0x0000000006250000-0x0000000006251000-memory.dmp