Overview

overview

7

Static

static

3

Masterstrap.exe

windows10-2004-x64

1

Masterstrap.exe

windows11-ltsc_2024-x64

1

Masterstrap.exe

windows10-2004-x64

7

Masterstrap.exe

windows11-ltsc_2024-x64

6

Microsoft....re.dll

windows10-2004-x64

1

Microsoft....re.dll

windows11-ltsc_2024-x64

1

Microsoft....ms.dll

windows10-2004-x64

1

Microsoft....ms.dll

windows11-ltsc_2024-x64

1

Microsoft....pf.dll

windows10-2004-x64

1

Microsoft....pf.dll

windows11-ltsc_2024-x64

1

WebView2Loader.dll

windows10-2004-x64

1

ZstdSharp.dll

windows10-2004-x64

1

ZstdSharp.dll

windows11-ltsc_2024-x64

1

runtimes\w...er.dll

windows10-2004-x64

1

Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/10/2026, 16:07

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General

  • Target
    ZstdSharp.dll
  • Size 386KB
  • Sample261024-tkwe2szy7k
  • SHA256 6844a1af1027745ee68118e9e23ad46335a2aa8755826f568e364a48bc784930
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
1/10

Malware Config

Signatures

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ZstdSharp.dll,#1
    1⤵
      PID:2496

    Network

          MITRE ATT&CK Matrix

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          Downloads