Overview

overview

10

Static

static

3

d28b8c8854...a9.exe

windows10-2004-x64

10

d28b8c8854...a9.exe

windows11-ltsc_2024-x64

5

Fibrolitic.ps1

windows10-2004-x64

8

Fibrolitic.ps1

windows11-ltsc_2024-x64

8

Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/07/2026, 03:44

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Fibrolitic.ps1
  • Size 53KB
  • Sample260713-eamb3abx2j
  • SHA256 2a07a75f46c3581a3d4c8476ccd99d5bfc245068e8ccf8c63062c8ad454f2667
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
executionpersistenceransomware

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 58 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 44 IoCs
  • Suspicious use of SetWindowsHookEx 4 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\Fibrolitic.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4644
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:2228
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:940
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1328

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Microsoft_AutoGenerated_{2F519BF2-C697-59F8-8F6A-1E19509CE66B}
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_AutoGenerated_{2F519BF2-C697-59F8-8F6A-1E19509CE66B}
        • Size 36KB
        • SHA256 813c66ce7dec4cff9c55fb6f809eab909421e37f69ff30e4acaa502365a32bd1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Microsoft_Windows_Explorer
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_Windows_Explorer
        • Size 36KB
        • SHA256 20a108577209b2499cfdba77645477dd0d9771a77d42a53c6315156761efcfbb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        __PSScriptPolicyTest_1e2j4gbz.pi5.ps1
        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1e2j4gbz.pi5.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/1328-24-0x000002622C300000-0x000002622C400000-memory.dmp
        Download

        memory/1328-34-0x000002622CFE0000-0x000002622D000000-memory.dmp
        Download

        memory/1328-47-0x000002622D6F0000-0x000002622D710000-memory.dmp
        Download

        memory/1328-30-0x000002622D320000-0x000002622D340000-memory.dmp
        Download

        memory/1328-25-0x000002622C300000-0x000002622C400000-memory.dmp
        Download

        memory/2228-29-0x0000000004C50000-0x0000000004C51000-memory.dmp
        Download

        memory/4644-10-0x000001E111D40000-0x000001E111D50000-memory.dmp
        Download

        memory/4644-16-0x000001E111EB0000-0x000001E111EB2000-memory.dmp
        Download

        memory/4644-15-0x000001E111D40000-0x000001E111D50000-memory.dmp
        Download

        memory/4644-13-0x000001E112080000-0x000001E1120A4000-memory.dmp
        Download

        memory/4644-12-0x000001E112080000-0x000001E1120AA000-memory.dmp
        Download

        memory/4644-11-0x000001E111D40000-0x000001E111D50000-memory.dmp
        Download

        memory/4644-0-0x000001E111D40000-0x000001E111D50000-memory.dmp
        Download

        memory/4644-3-0x000001E111E80000-0x000001E111EA2000-memory.dmp
        Download

        memory/4644-1-0x000001E111D40000-0x000001E111D50000-memory.dmp
        Download