Overview

overview

10

Static

static

3

builder.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    builder.zip
  • Size 3.6MB
  • Sample260824-chrkmsck5w
  • SHA256 9d31e9cd075b60f78412e04ecbe9959609f9c6f0ed6d86fdf10de76265c6b74f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
bqtlockcollectiondefense_evasiondiscoveryexecutionpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Public\README_TO_DECRYPT.txt

Ransom Note
  • ALL YOUR FILES HAVE BEEN ENCRYPTED BY BQTLOCK! Your entire network has been penetrated, and all data is now encrypted using military-grade AES-256 and RSA-4096 algorithms. Decryption is impossible without our unique private key. ? Do NOT attempt to recover your files using third-party tools or backups. Any such action will result in the irreversible loss of your data. To begin the recovery process contact ,: http://yywhylvqeqynzik6ibocb53o2nat7lmzn5ynjpar3stndzcgmy6dkgid.onion/ https://bqtlock.com https://t.me/zerodayx1 your unique ID is: ? You have 48 hours to make contact. After that, the decryption price will double. After 7 days, your key will be destroyed permanently. We are watching ?????BQTLOCK?? ?????????????? ???: http://yywhylvqeqynzik6ibocb53o2nat7lmzn5ynjpar3stndzcgmy6dkgid.onion/ https://bqtlock.com https://t.me/zerodayx1
URLs

  • http://yywhylvqeqynzik6ibocb53o2nat7lmzn5ynjpar3stndzcgmy6dkgid.onion/

  • https://bqtlock.com

  • https://t.me/zerodayx1

Targets

    • Target
      builder.exe
    • Size 8.8MB
    • SHA256 251bfc950ad20f4b9ecea236abf979b70519aa55b7d39c76de02c2a696ba36f1
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    collectiondefense_evasiondiscoveryexecutionbqtlockpersistenceprivilege_escalationransomwarespywarestealer

    • Family: BQTLock

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

      ransomwarebqtlock

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses Microsoft Outlook profiles

      collection

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

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

      discovery

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Persistence

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

1
T1012

System Information Discovery

2
T1082

System Network Configuration Discovery

2
T1016

Internet Connection Discovery

1
T1016.001

Wi-Fi Discovery

1
T1016.002

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Tasks