Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://gofile.io/d/...

windows10-2004-x64

10

Sharing

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General

  • Target

    https://gofile.io/d/bCs7LR

  • Sample

    240423-qryxzagg49

Score
10/10
quasaroffice04persistencepyinstallerspywarestealertrojanupx

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

6.tcp.ngrok.io:16799

Mutex

0c20af10-1b0a-4d0e-bbca-3718ee39e827

Attributes
  • encryption_key

    284202D1B7ED732612BB54048953C4453A2549F9

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    System32

  • subdirectory

    SubDir

Targets

    • Target

      https://gofile.io/d/bCs7LR

    Score
    10/10
    quasaroffice04persistencepyinstallerspywarestealertrojanupx

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

2
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks