Overview

overview

10

Static

static

3

d546ccfe65...4b.exe

windows10-2004-x64

10

d546ccfe65...4b.exe

windows11-ltsc_2024-x64

6

Brasswork/striber.ps1

windows10-2004-x64

8

Brasswork/striber.ps1

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 17:17

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Brasswork/striber.ps1
  • Size 52KB
  • Sample260810-vtzphahe29
  • SHA256 93daa99dcce7c5d16d6cc5fd5dc089bb3514c31d91360b9420ea8f2a6b064de3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwareexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

    execution
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of FindShellTrayWindow 59 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Brasswork\striber.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5596
  • C:\Windows\system32\userinit.exe
    C:\Windows\system32\userinit.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3720
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2936
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4088

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        prep_Activatable Class_Hermes_perf.cache
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/2936-65-0x0000026F02A40000-0x0000026F02A60000-memory.dmp
        Download

        memory/2936-99-0x0000026F14280000-0x0000026F142A0000-memory.dmp
        Download

        memory/2936-66-0x0000026F02E80000-0x0000026F02F80000-memory.dmp
        Download

        memory/2936-53-0x0000026F001E0000-0x0000026F002E0000-memory.dmp
        Download

        memory/2936-78-0x0000026F02E00000-0x0000026F02E20000-memory.dmp
        Download

        memory/5596-14-0x0000018B6FBC0000-0x0000018B6FBDE000-memory.dmp
        Download

        memory/5596-27-0x0000018B6FDD0000-0x0000018B6FDD6000-memory.dmp
        Download

        memory/5596-10-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-11-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-0-0x00007FFA47CFF000-0x00007FFA47D00000-memory.dmp
        Download

        memory/5596-15-0x0000018B6FD00000-0x0000018B6FDB2000-memory.dmp
        Download

        memory/5596-16-0x0000018B6FBB0000-0x0000018B6FBBA000-memory.dmp
        Download

        memory/5596-17-0x0000018B6FDE0000-0x0000018B6FDFE000-memory.dmp
        Download

        memory/5596-18-0x0000018B6FBE0000-0x0000018B6FBEA000-memory.dmp
        Download

        memory/5596-19-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-20-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-21-0x0000018B6FE00000-0x0000018B6FE1C000-memory.dmp
        Download

        memory/5596-22-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-23-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-24-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-25-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-26-0x0000018B6FDC0000-0x0000018B6FDC8000-memory.dmp
        Download

        memory/5596-9-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-28-0x0000018B6FE20000-0x0000018B6FE2A000-memory.dmp
        Download

        memory/5596-29-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-30-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-32-0x0000018B6FDC0000-0x0000018B6FDE4000-memory.dmp
        Download

        memory/5596-31-0x0000018B6FDC0000-0x0000018B6FDEA000-memory.dmp
        Download

        memory/5596-33-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-8-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-7-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-6-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-5-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-4-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-3-0x0000018B6FB70000-0x0000018B6FB92000-memory.dmp
        Download

        memory/5596-160-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-220-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-221-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download

        memory/5596-222-0x00007FFA47B70000-0x00007FFA48514000-memory.dmp
        Download