Overview

overview

10

Static

static

3

BQTLock.exe

windows10-2004-x64

10

BQTLock.exe

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    BQTLock.exe
  • Size 8.5MB
  • Sample260118-t5kjaaay8d
  • SHA256 2aae1d749353067f5afb5bebedb5249047f60e7aaa9684ac7c779a0908b1573c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
bqtlockcredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target
      BQTLock.exe
    • Size 8.5MB
    • SHA256 2aae1d749353067f5afb5bebedb5249047f60e7aaa9684ac7c779a0908b1573c
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    credential_accessdefense_evasiondiscoveryexecutionbqtlockimpactpersistenceransomwarespywarestealer

    • BQTLock

      BQTLock is a ransomware that operates under a Ransomware-as-a-Service model.

      ransomwarebqtlock

    • Bqtlock family

      bqtlock

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (5814) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Windows Management Instrumentation

1
T1047

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

Direct Volume Access

1
T1006

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks