Analysis

  • max time kernel
    146s
  • max time network
    88s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    08/08/2020, 08:21

General

  • Target
    URGENT SUPPLY - QUOTE 2020.exe
  • Size 441KB
  • Sample200808-jmr52axsd2
  • SHA256 62eac77e0c2f8ca3a62f0ba2cd9989323b8a8d571ddd613048820f5cee6b1162
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.hilmarcheeze.com

  • Port

    587

  • Password

    MEgQ(dB7

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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\URGENT SUPPLY - QUOTE 2020.exe
    "C:\Users\Admin\AppData\Local\Temp\URGENT SUPPLY - QUOTE 2020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iOBKGejssk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D8C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2700
    • C:\Users\Admin\AppData\Local\Temp\URGENT SUPPLY - QUOTE 2020.exe
      "{path}"
      2⤵
        PID:3924
      • C:\Users\Admin\AppData\Local\Temp\URGENT SUPPLY - QUOTE 2020.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3576

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3576-2-0x0000000000400000-0x000000000044C000-memory.dmp