Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/11/2026, 12:13

General

  • Target
    JUSTIFICANTE DE PAGO.pdf.exe
  • Size 1.3MB
  • Sample261113-pd1zqsbs8y
  • SHA256 1c0794f74cd0520dfa1580112d904fa39cb7ae062c10904743f7bd0422384a4a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Drops file in System32 directory 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 3 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE DE PAGO.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE DE PAGO.pdf.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE DE PAGO.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\JUSTIFICANTE DE PAGO.pdf.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1728

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsb6EA4.tmp\System.dll
        • Size 25KB
        • SHA256 14a2ba8f2ba490c1ac67551f28b859f4f07338a5fc0f291525d926ee4d973b8f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1728-45-0x0000000000080000-0x0000000000179000-memory.dmp

        memory/1728-48-0x0000000140000000-0x0000000141677000-memory.dmp

        memory/1728-50-0x00007FFB92409000-0x00007FFB9240B000-memory.dmp

        memory/1728-63-0x0000000140000000-0x0000000141677000-memory.dmp

        memory/1728-64-0x0000000140000000-0x0000000141677000-memory.dmp

        memory/1740-19-0x00007FFB83B19000-0x00007FFB83B1A000-memory.dmp

        memory/1740-20-0x00007FFB83B10000-0x00007FFB83B1F000-memory.dmp

        memory/1740-44-0x00000000051E0000-0x0000000009B12000-memory.dmp

        memory/1740-46-0x0000000140000000-0x000000014014D000-memory.dmp