Overview

overview

10

Static

static

1

Patch Fix.exe

windows7-x64

10

Patch Fix.exe

windows10-2004-x64

7

Sharing

Copy URL
Twitter E-mail

General

  • Target

    Patch Fix.exe

  • Size

    1.0MB

  • Sample

    240530-fmzctsfe21

  • MD5

    0b44f548d340e9275d94971241bb8f7a

  • SHA1

    f33be25f3f0e471e9e65613e0493cf1900b22422

  • SHA256

    ae0e11a13ffa7d349b3fbd4e1966d25a5a339b164ed6cc87bbf8da76abde8866

  • SHA512

    633629ea7a8a64dc00560bc3e1ed5de25ca234cdadabfcc83ac52e779464c72035111332c11162ddf2a971660c915b3e7eced02c132f07788cc5d46e73dfb577

  • SSDEEP

    24576:aNxY7AJDq1S1pOefXNV8PYabTFSlPZFfk4:aNxvtXOefb8xleR7

Score
10/10
quasarchromepersistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Chrome

C2

qassar23.ddns.net:1993

Mutex

QSR_MUTEX_Uk4K1FeKx4DjEtnjXG

Attributes
  • encryption_key

    4rkb9eRfFISIy758S45s

  • install_name

    Update service.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Chrome

  • subdirectory

    microsofte

Targets

    • Target

      Patch Fix.exe

    • Size

      1.0MB

    • MD5

      0b44f548d340e9275d94971241bb8f7a

    • SHA1

      f33be25f3f0e471e9e65613e0493cf1900b22422

    • SHA256

      ae0e11a13ffa7d349b3fbd4e1966d25a5a339b164ed6cc87bbf8da76abde8866

    • SHA512

      633629ea7a8a64dc00560bc3e1ed5de25ca234cdadabfcc83ac52e779464c72035111332c11162ddf2a971660c915b3e7eced02c132f07788cc5d46e73dfb577

    • SSDEEP

      24576:aNxY7AJDq1S1pOefXNV8PYabTFSlPZFfk4:aNxvtXOefb8xleR7

    Score
    10/10
    quasarchromepersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks