Overview

overview

10

Static

static

1

URLScan

urlscan

1

http://gofile.io/d/H...

windows10-2004-x64

10

Sharing

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General

  • Target

    http://gofile.io/d/Hbsz20

  • Sample

    250202-eflbystqcs

Score
10/10
quasarvenomratcdefense_evasiondiscoveryevasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

C

C2

sunday-n.gl.at.ply.gg:45214

Mutex

VNM_MUTEX_JOaTNk0VrI3HINWRTc

Attributes
  • encryption_key

    BVfQN2TWXpz6KPjx5tNq

  • install_name

    V.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    V

  • subdirectory

    SubDir

Targets

    • Target

      http://gofile.io/d/Hbsz20

    Score
    10/10
    quasarvenomratcdefense_evasiondiscoveryevasionratrootkitspywarestealertrojan

    • 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 Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • Modifies Windows Defender Real-time Protection settings

      defense_evasiontrojan

    • Modifies Windows Defender TamperProtection settings

      evasiontrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

      ratrootkitstealervenomrat

    • Venomrat family

      venomrat

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Windows security modification

      defense_evasiontrojan

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

4
T1562

Disable or Modify Tools

4
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks