Analysis

  • max time kernel
    141s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 15:37

General

  • Target
    rScaned_Product_Attached_Document.pdf.exe
  • Size 745KB
  • Sample240223-s2f61scd28
  • SHA256 7db939f103732a9f11c55ba54b8b7aaaa35309cfda3eec039dd71d6bd9d331da
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    webmail.senofech-industry.com

  • Port

    587

  • Password

    Ghostarmy@@2022

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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
  • 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\rScaned_Product_Attached_Document.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\rScaned_Product_Attached_Document.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Users\Admin\AppData\Local\Temp\rScaned_Product_Attached_Document.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\rScaned_Product_Attached_Document.pdf.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1476-10-0x0000000008E80000-0x0000000008F1C000-memory.dmp

        memory/1476-1-0x0000000000360000-0x0000000000420000-memory.dmp

        memory/1476-2-0x00000000052E0000-0x0000000005884000-memory.dmp

        memory/1476-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

        memory/1476-4-0x0000000004F30000-0x0000000004F40000-memory.dmp

        memory/1476-5-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

        memory/1476-6-0x0000000005220000-0x0000000005240000-memory.dmp

        memory/1476-7-0x0000000005240000-0x000000000524E000-memory.dmp

        memory/1476-9-0x0000000006590000-0x0000000006616000-memory.dmp

        memory/1476-8-0x0000000005250000-0x0000000005262000-memory.dmp

        memory/1476-15-0x0000000074E60000-0x0000000075610000-memory.dmp

        memory/1476-11-0x0000000074E60000-0x0000000075610000-memory.dmp

        memory/1476-0-0x0000000074E60000-0x0000000075610000-memory.dmp

        memory/1804-14-0x0000000074E60000-0x0000000075610000-memory.dmp

        memory/1804-12-0x0000000000400000-0x0000000000444000-memory.dmp

        memory/1804-16-0x00000000057C0000-0x00000000057D0000-memory.dmp

        memory/1804-17-0x0000000005840000-0x00000000058A6000-memory.dmp

        memory/1804-19-0x0000000006C10000-0x0000000006C60000-memory.dmp

        memory/1804-20-0x0000000074E60000-0x0000000075610000-memory.dmp

        memory/1804-21-0x00000000057C0000-0x00000000057D0000-memory.dmp