Overview

overview

6

Static

static

1

a0c8536bcb...be.exe

windows10-2004-x64

6

a0c8536bcb...be.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    150s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/07/2026, 18:13

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General

  • Target
    a0c8536bcb88636d6a36cd30f5955cc0071860277a07e15fbf0b90aacc31adbe.exe
  • Size 1.3MB
  • Sample260731-wt38cszsd1
  • SHA256 a0c8536bcb88636d6a36cd30f5955cc0071860277a07e15fbf0b90aacc31adbe
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
bootkitdiscoverypersistence

Malware Config

Signatures

  • 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.

    bootkitpersistence
  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of FindShellTrayWindow 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0c8536bcb88636d6a36cd30f5955cc0071860277a07e15fbf0b90aacc31adbe.exe
    "C:\Users\Admin\AppData\Local\Temp\a0c8536bcb88636d6a36cd30f5955cc0071860277a07e15fbf0b90aacc31adbe.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    PID:3572

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        nsAutoUpdate.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsb5F3E.tmp\nsAutoUpdate.dll
        • Size 1.7MB
        • SHA256 05d8617dbed3f2db589dfa828fa1228c881db9a4a195b05e2bc09a2c479e6626
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsSkinEngine.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsb5F3E.tmp\nsSkinEngine.dll
        • Size 646KB
        • SHA256 21acb9006b8106ef01e5dcbc6d731317414b8a4649d077714860821bf4af8927
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsUtils.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsb5F3E.tmp\nsUtils.dll
        • Size 166KB
        • SHA256 7339d2fdfc5d9fa055c8b932c708104a7bf055154062107d51e55da412a49d7e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download