Overview

overview

8

Static

static

3

MasonClient.exe

windows11-21h2-x64

8

Sharing

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General

  • Target
    MasonClient.exe
  • Size 631KB
  • Sample260718-b5mdrsfz5v
  • SHA256 f4af738257661b3ca9783e17597f83568f300dc471b26e399ce9d85b1d3c7ffd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
defense_evasiondiscoveryexecutionpersistence

Malware Config

Targets

    • Target
      MasonClient.exe
    • Size 631KB
    • SHA256 f4af738257661b3ca9783e17597f83568f300dc471b26e399ce9d85b1d3c7ffd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    defense_evasiondiscoveryexecutionpersistence

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Executes dropped EXE

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

      defense_evasion

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

      defense_evasion

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

      defense_evasion

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Hide Artifacts

5
T1564

File/Path Exclusions

1
T1564.012

Hidden Files and Directories

2
T1564.001

Hidden Window

1
T1564.003

Ignore Process Interrupts

1
T1564.011

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

1
T1070

Clear Persistence

1
T1070.009

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks