Overview

overview

10

Static

static

3

sand0ra.exe

windows10-2004-x64

10

sand0ra.exe

windows11-ltsc_2024-x64

1

Sharing

Copy URL Twitter E-mail

General

  • Target
    sand0ra.exe
  • Size 89KB
  • Sample261011-te5frscg37
  • SHA256 227bcb09d5ba6b6123be82eb27550fbc7d751dbfc76294c7831dbf4feeaeaa3c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarebootkitdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarestealertrojan

Malware Config

Targets

    • Target
      sand0ra.exe
    • Size 89KB
    • SHA256 227bcb09d5ba6b6123be82eb27550fbc7d751dbfc76294c7831dbf4feeaeaa3c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwarebootkitdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarestealertrojan

    • 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

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Adds policy Run key to start application

      persistence

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables RegEdit via registry modification

      defense_evasion

    • Disables Task Manager via registry modification

      defense_evasion

    • Drops file in Drivers directory

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

      persistence

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

      persistence

    • Disables service(s)

      defense_evasionexecution

    • Modifies file permissions

      discovery

    • Modifies system executable filetype association

      persistence

    • Stops running service(s)

      defense_evasionexecution

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Enumerates connected drives

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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

      stealeradware

    • Modifies WinLogon

      persistence

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

      persistence

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

3
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

2
T1569

Service Execution

2
T1569.002

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

6
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Winlogon Helper DLL

2
T1547.004

Browser Extensions

1
T1176

Create or Modify System Process

5
T1543

Windows Service

5
T1543.003

Event Triggered Execution

3
T1546

AppInit DLLs

1
T1546.010

Change Default File Association

1
T1546.001

Image File Execution Options Injection

1
T1546.012

Power Settings

1
T1653

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

6
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Winlogon Helper DLL

2
T1547.004

Create or Modify System Process

5
T1543

Windows Service

5
T1543.003

Event Triggered Execution

3
T1546

AppInit DLLs

1
T1546.010

Change Default File Association

1
T1546.001

Image File Execution Options Injection

1
T1546.012

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

File and Directory Permissions Modification

1
T1222

Hide Artifacts

1
T1564

Ignore Process Interrupts

1
T1564.011

Impair Defenses

4
T1562

Disable or Modify Tools

3
T1562.001

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

12
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

3
T1012

System Information Discovery

4
T1082

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Service Stop

2
T1489

Tasks