Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 07:46

General

  • Target
    2026-08-09_8e2624e89fd7f7c6ed4e7169dde7d87b_mespinoza.exe
  • Size 10.4MB
  • Sample260809-jmdynstbpe
  • SHA256 31b49327d2f28119119b44cf6ee3053c01683bf79772a61d3ce27e48e17872e1
  • 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\2026-08-09_8e2624e89fd7f7c6ed4e7169dde7d87b_mespinoza.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-09_8e2624e89fd7f7c6ed4e7169dde7d87b_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:4308

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/4308-0-0x00007FFBA7AD0000-0x00007FFBA7AD2000-memory.dmp

        memory/4308-2-0x00007FFBA5390000-0x00007FFBA5659000-memory.dmp

        memory/4308-1-0x00007FF7429A0000-0x00007FF74352F000-memory.dmp

        memory/4308-4-0x00007FFBA5390000-0x00007FFBA5659000-memory.dmp

        memory/4308-7-0x00007FFBA5390000-0x00007FFBA5659000-memory.dmp

        memory/4308-8-0x00007FFBA5390000-0x00007FFBA5659000-memory.dmp

        memory/4308-11-0x00007FFBA5390000-0x00007FFBA5659000-memory.dmp