Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    09/07/2020, 13:35

General

  • Target
    attached swifts.exe
  • Size 737KB
  • Sample200709-x6sttxcava
  • SHA256 cc1d466f94bbd61eb8ef952b8f112d2015cf0b14c72f6f9b47e0ab3d4b368b2f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.mexicanproduct.com.mx

  • Port

    587

  • Password

    Produccion2020.

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.mexicanproduct.com.mx

  • Port

    587

  • Password

    Produccion2020.

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\attached swifts.exe
    "C:\Users\Admin\AppData\Local\Temp\attached swifts.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QmZkCrTdrajDkB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp69A2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3804
    • C:\Users\Admin\AppData\Local\Temp\attached swifts.exe
      "{path}"
      2⤵
        PID:1732
      • C:\Users\Admin\AppData\Local\Temp\attached swifts.exe
        "{path}"
        2⤵
          PID:3860
        • C:\Users\Admin\AppData\Local\Temp\attached swifts.exe
          "{path}"
          2⤵
            PID:3868
          • C:\Users\Admin\AppData\Local\Temp\attached swifts.exe
            "{path}"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3820

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/3820-2-0x0000000000400000-0x000000000044E000-memory.dmp