Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08/12/2020, 09:15

General

  • Target
    URGENT QUOTE _DELIVER TIME.exe
  • Size 1.0MB
  • Sample201208-79fsn9jsxn
  • SHA256 dfa12558abb79cf34f77efe7c71a0dfab082f4e5e40df271aec9a7792b248d17
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.annlap.com

  • Port

    587

  • Password

    NorthWood11823#

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 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\URGENT QUOTE _DELIVER TIME.exe
    "C:\Users\Admin\AppData\Local\Temp\URGENT QUOTE _DELIVER TIME.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:504
    • C:\Users\Admin\AppData\Local\Temp\URGENT QUOTE _DELIVER TIME.exe
      "C:\Users\Admin\AppData\Local\Temp\URGENT QUOTE _DELIVER TIME.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2992

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2992-2-0x0000000000400000-0x000000000043C000-memory.dmp