Analysis

  • max time kernel
    300s
  • max time network
    138s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/08/2026, 00:59

General

  • Target
    Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
  • Size 218KB
  • Sample260827-bb663sga22
  • SHA256 1de0fa738e7cf0b9cf92e509dd72dd50fa5d8e4c74f770f629be3c69e77fe740
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.dankely.org

  • Port

    21

  • Password

    !?jSK$}v08$[

Signatures

  • Family: AgentTesla

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

  • Loads dropped DLL 1 IoCs
  • 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
  • Looks up external IP address via web service 1 TTPs 1 IoCs

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

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5760
    • C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"
      2⤵
        PID:3416
      • C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        PID:3124
        • C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe
          "C:\Users\Admin\AppData\Local\Temp\Nomina_Agosto_2026_Recursos_Humanos.pdf.exe"
          3⤵
            PID:2684

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nscE3F3.tmp\System.dll
            • Size 12KB
            • SHA256 b7823a15e7b1866ba3d77248f750b66505859d264cfc39d8c8c5e812f8ae4a81
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/3124-25-0x0000000000470000-0x00000000004B2000-memory.dmp

            memory/3124-27-0x0000000072730000-0x0000000072EEC000-memory.dmp

            memory/3124-11-0x0000000077C7D000-0x0000000077C7E000-memory.dmp

            memory/3124-12-0x0000000077D45000-0x0000000077D46000-memory.dmp

            memory/3124-23-0x0000000077C11000-0x0000000077D3F000-memory.dmp

            memory/3124-22-0x0000000000470000-0x0000000001756000-memory.dmp

            memory/3124-24-0x0000000072742000-0x0000000072743000-memory.dmp

            memory/3124-35-0x0000000072730000-0x0000000072EEC000-memory.dmp

            memory/3124-10-0x0000000077CBF000-0x0000000077CC0000-memory.dmp

            memory/3124-28-0x0000000039DB0000-0x0000000039E16000-memory.dmp

            memory/3124-26-0x0000000039E70000-0x000000003A42A000-memory.dmp

            memory/3124-30-0x000000003AC40000-0x000000003ACD2000-memory.dmp

            memory/3124-31-0x000000003ACE0000-0x000000003AD30000-memory.dmp

            memory/3124-32-0x000000003AD30000-0x000000003AD3A000-memory.dmp

            memory/3124-33-0x0000000077D45000-0x0000000077D46000-memory.dmp

            memory/3124-34-0x0000000072742000-0x0000000072743000-memory.dmp

            memory/5760-9-0x00000000749F5000-0x00000000749F6000-memory.dmp