Analysis

  • max time kernel
    139s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    24/06/2020, 13:14

General

  • Target
    Message Body.scr
  • Size 766KB
  • Sample200624-texm6edzz2
  • SHA256 8470a2e93ae48abb1b987d9927277eb7a3bde99fe0d048274f839cc25aa3aa95
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.northwestpowdercoating.co.uk

  • Port

    587

  • Password

    C^0z.^LxykTW

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Message Body.scr
    "C:\Users\Admin\AppData\Local\Temp\Message Body.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1232
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZXGZPpOoZnS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B25.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1748
    • C:\Users\Admin\AppData\Local\Temp\Message Body.scr
      "{path}"
      2⤵
        PID:1772
      • C:\Users\Admin\AppData\Local\Temp\Message Body.scr
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:524

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/524-4-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/524-6-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/524-7-0x0000000000400000-0x000000000044C000-memory.dmp