Analysis

  • max time kernel
    299s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/10/2026, 05:59

General

  • Target
    COTIZACIÓN #0211839077251025.pdf.exe
  • Size 827KB
  • Sample261031-gp15wavsdv
  • SHA256 80f45e6c96776d9b2e56b6fd78232e5325660a80cdc94232a7d72375df5f9196
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • Family: AgentTesla

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

  • Loads dropped DLL 1 IoCs
  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3280
    • C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe"
      2⤵
        PID:5648
      • C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        PID:1196
        • C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe
          "C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN #0211839077251025.pdf.exe"
          3⤵
            PID:2448

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsj5914.tmp\System.dll
            • Size 12KB
            • SHA256 6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1196-30-0x0000000072042000-0x0000000072043000-memory.dmp

            memory/1196-33-0x0000000072030000-0x00000000727EC000-memory.dmp

            memory/1196-13-0x000000007757D000-0x000000007757E000-memory.dmp

            memory/1196-14-0x0000000077645000-0x0000000077646000-memory.dmp

            memory/1196-24-0x00000000004A0000-0x0000000001786000-memory.dmp

            memory/1196-29-0x0000000077511000-0x000000007763F000-memory.dmp

            memory/1196-28-0x00000000004A0000-0x0000000001786000-memory.dmp

            memory/1196-41-0x0000000072030000-0x00000000727EC000-memory.dmp

            memory/1196-12-0x00000000775BF000-0x00000000775C0000-memory.dmp

            memory/1196-31-0x00000000004A0000-0x00000000004E0000-memory.dmp

            memory/1196-32-0x000000003A920000-0x000000003AEDA000-memory.dmp

            memory/1196-34-0x0000000038640000-0x00000000386A6000-memory.dmp

            memory/1196-35-0x0000000077645000-0x0000000077646000-memory.dmp

            memory/1196-36-0x000000003B1E0000-0x000000003B230000-memory.dmp

            memory/1196-37-0x000000003B230000-0x000000003B2C2000-memory.dmp

            memory/1196-38-0x000000003A900000-0x000000003A90A000-memory.dmp

            memory/1196-40-0x0000000072042000-0x0000000072043000-memory.dmp

            memory/3280-11-0x00000000742F5000-0x00000000742F6000-memory.dmp