Analysis

  • max time kernel
    67s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27/10/2022, 08:32

General

  • Target
    ef8019793102db8e50fde345e01b8481.exe
  • Size 1.0MB
  • Sample221027-kfas4sbee9
  • SHA256 eaa91b97199a371d6361bc0ca5cb757d46c25b732cf7331bcd4e3bcdb4bb6e9a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.hmbgrope.com

  • Port

    587

  • Password

    Nagod8135

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe
    "C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe
      "C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1168

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1168-64-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-65-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-70-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-61-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-60-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-63-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1168-68-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/1204-55-0x0000000074E41000-0x0000000074E43000-memory.dmp

        memory/1204-54-0x0000000000850000-0x0000000000960000-memory.dmp

        memory/1204-59-0x0000000005BC0000-0x0000000005C40000-memory.dmp

        memory/1204-58-0x0000000005EC0000-0x0000000005F76000-memory.dmp

        memory/1204-57-0x00000000004E0000-0x00000000004EC000-memory.dmp

        memory/1204-56-0x0000000000410000-0x0000000000426000-memory.dmp