Overview

overview

10

Static

static

1

install.ps1

windows10-2004-x64

10

install.ps1

windows11-ltsc_2024-x64

3

Sharing

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General

  • Target
    install.ps1
  • Size 828B
  • Sample260809-gzsaqasbpb
  • SHA256 151dc155ec8a80756342b42a66b325f331818d8233eeb717f58e436adbc0b4c8
  • MD5 SHA1 SHA512 TLSH
Score
10/10
defense_evasiondiscoveryevasionexecutionimpactinstallerpersistencepyinstallerransomwarespywaretrojan

Malware Config

Targets

    • Target
      install.ps1
    • Size 828B
    • SHA256 151dc155ec8a80756342b42a66b325f331818d8233eeb717f58e436adbc0b4c8
    • MD5 SHA1 SHA512 TLSH
    Score
    10/10
    defense_evasiondiscoveryevasionexecutionimpactinstallerpersistencepyinstallerransomwarespywaretrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies WinLogon for persistence

      persistence

    • Modifies Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • Modifies Windows Defender Real-time Protection settings

      defense_evasiontrojan

    • UAC bypass

      defense_evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Deletes system backups

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

      discovery

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

4
T1059

PowerShell

1
T1059.001

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

6
T1112

Subvert Trust Controls

2
T1553

Install Root Certificate

2
T1553.004

Credential Access

Discovery

Process Discovery

1
T1057

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

3
T1490

Tasks