Overview

overview

10

Static

static

3

BQT.exe

windows10-2004-x64

10

BQT.exe

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    BQT.exe
  • Size 8.5MB
  • Sample251010-q3ba2sdj6w
  • SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
bqtlockcredential_accessdefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Program Files\dotnet\host\fxr\6.0.27\README_TO_DECRYPT.txt

Ransom Note
  • YOUR FILES ARE ENCRYPTED! your files are not deleted but they are hidden to see them use cmd.exe and dir /a To recover your files, send 10 xmr to the following address:89RQN2EUmiX6vL7nTv3viqUAgbDpN4ab329zPCEgbceQJuS233uye4eXtYk3MXAtVoKNMmzgVrxXphLZbJPtearY7QVuApr After payment, send your HWID and transaction ID to: [email protected] we send you a decryptor and key DO NOT try to decrypt files yourself or use third-party tools, this will lead to permanent data loss.

Targets

    • Target
      BQT.exe
    • Size 8.5MB
    • SHA256 9600db537e27db88ed2eca3be0ffab35cdb22a86a6dbb048d8deaf8f56944822
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    credential_accessdefense_evasionexecutionbqtlockimpactpersistenceransomwarespywarestealer

    • 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 (4250) 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.

    • 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.

    • 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

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

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks