Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 04:25

General

  • Target
    2026-06-27_a2da6c5435979561b964c7439a2427ec_mespinoza.exe
  • Size 22.2MB
  • Sample260629-e196tacz9w
  • SHA256 21c7c43a8a1dd4de4537f22bce872c936a839c1fc873950ad200dadc0110104b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-27_a2da6c5435979561b964c7439a2427ec_mespinoza.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-27_a2da6c5435979561b964c7439a2427ec_mespinoza.exe"
    1⤵
    • Checks BIOS information in registry
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:5324

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/5324-0-0x00007FF7C0903000-0x00007FF7C0B1E000-memory.dmp

        memory/5324-1-0x00007FFFF8C50000-0x00007FFFF8C52000-memory.dmp

        memory/5324-6-0x00007FF7C0510000-0x00007FF7C115F000-memory.dmp

        memory/5324-8-0x00007FF7C0903000-0x00007FF7C0B1E000-memory.dmp

        memory/5324-10-0x00007FF7C0903000-0x00007FF7C0B1E000-memory.dmp

        memory/5324-11-0x00007FF7C0510000-0x00007FF7C115F000-memory.dmp