Analysis

  • max time kernel
    103s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/08/2024, 09:10

General

  • Target
    New PO 24072024 pdf.exe
  • Size 575KB
  • Sample240809-k4279ssfng
  • SHA256 8412cec351eb6eee2f3c66ef6567a80e828a86ad904d41753b4510ef068e5c50
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://inhanoi.net.vn

  • Port

    21

  • Password

    ^TSt3!FK$UBA

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Looks up external IP address via web service 2 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New PO 24072024 pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\New PO 24072024 pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\New PO 24072024 pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5024

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/4104-14-0x0000000000880000-0x00000000009CB000-memory.dmp

        memory/4104-11-0x0000000001520000-0x0000000001524000-memory.dmp

        memory/4104-0-0x0000000000880000-0x00000000009CB000-memory.dmp

        memory/5024-17-0x0000000005970000-0x00000000059D6000-memory.dmp

        memory/5024-15-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

        memory/5024-16-0x0000000005D40000-0x00000000062E4000-memory.dmp

        memory/5024-12-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/5024-18-0x0000000073FF0000-0x00000000747A0000-memory.dmp

        memory/5024-19-0x0000000006F10000-0x0000000006F60000-memory.dmp

        memory/5024-20-0x0000000007000000-0x0000000007092000-memory.dmp

        memory/5024-21-0x0000000006F80000-0x0000000006F8A000-memory.dmp

        memory/5024-22-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

        memory/5024-23-0x0000000073FF0000-0x00000000747A0000-memory.dmp