Overview

overview

10

Static

static

3

Quasar v1.4.1.exe

windows10-2004-x64

10

Quasar v1.4.1.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Quasar v1.4.1.exe
  • Size 594KB
  • Sample261107-2ayresss8k
  • SHA256 ffd3af118b50711d0eb6389f3bcb0504f945ff32cab1b9b61fda67b6d7d3765f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarxmrigadwaredefense_evasiondiscoveryexecutionminerpersistenceprivilege_escalationspywarestealertrojan

Malware Config

Targets

    • Target
      Quasar v1.4.1.exe
    • Size 594KB
    • SHA256 ffd3af118b50711d0eb6389f3bcb0504f945ff32cab1b9b61fda67b6d7d3765f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwarediscoveryquasarpersistenceprivilege_escalationspywaretrojandefense_evasionexecutionxmrigminerstealer

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Family: xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • Quasar payload

    • XMRig Miner payload

      miner

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Modifies Windows Firewall

      defense_evasion

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Checks system information in the registry

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

3
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

3
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

3
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks