Ransomware

LockBit 3.0 Technical Analysis Report

LockBit 3.0, also called LockBit Black, followed LockBit 2.0 with Zcash payments, a leak site search and a bug bounty program. See what changed.

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LockBit 3.0, also called LockBit Black, is a ransomware-as-a-Service variant that follows LockBit 2.0. It adds a Zcash payment option, a search feature on its leak site and a bug bounty program, according to this analysis. MITRE ATT&CK lists June 2022 as its first appearance and notes similarities to BlackMatter.

This blog post comes from the “LockBit 3.0 Technical Analysis Report” by the Brandefense CTI Analyst Team. For more details about the analysis, download the report.

What Is LockBit 3.0?

With the group’s return, Lockbit introduced Lockbit3.0, a new variant of Lockbit 2.0. LockBit 3.0 ransomware (aka LockBit Black) shares similarities with the BlackMatter group‘s ransomware, according to CISA and MITRE ATT&CK, and adopts Ransomware-as-a-Service; LockBit is an advanced version of the RaaS family. The ransomware, also called Lockbit Black, has developed itself with new extortion techniques and added the option to pay with Zcash and the existing Bitcoin and Monero crypto payment methods.

As a result of critical bugs discovered in Lockbit 2.0 in the first quarter of 2022, malware authors began adding new features to improve encryption processes and thwart security researchers.

In addition to these developments, the group announced the Bug Bounty program, breaking new ground among cybercriminal gangs. For many other cybercriminals, the program promises rewards for the idea of ​​bug fixing or improving existing features.

LockBit 3.0 at a glance
Also called
LockBit Black
Builds on
LockBit 2.0
Model
Ransomware-as-a-Service
Payment options
Bitcoin, Monero, Zcash
Leak site
Version 3.0 site with a search feature
First seen
March 2022 (CISA) or June 2022 (MITRE ATT&CK); sources differ

What Changed with LockBit 3.0?

With the introduction of Lockbit 3.0 by the Lockbit gang, their operators and their gang-affiliated collaborators started to adopt Lockbit 3.0 quickly. As a result, as of June 2022, affected organizations and many affected organizations have been identified on the “Version 3.0” leak site of the leaked data.

(hxxp://lockbitapt[REDACTED]ead[.]onion)

affected organizations from Lockbit
Figure 1: Organizations most recently affected by Lockbit 3.0

It is also aggressively releasing alternate Onion addresses with copies of the data they managed to leak to ensure continuity of announcements of leaked data and to increase resilience to interception efforts.

lockbit's mirror .onion sites
Figure 2: Mirror sites (.onion) used for data leaks, backups, and communication

Another change with Lockbit 3.0 is adding a search feature that will allow a targeted organization to browse publicly published data without downloading it instantly.

leaked data and feature by lockbit
Figure 3: Added feature for instant search of leaked data

In addition to its existing payment methods, Bitcoin and Monero, Lockbit has added the ability to pay with Zcash crypto. On the other hand, one of the most remarkable developments was the bug bounty program they announced.

Among the topics in the scope of the program is the detection of errors that may occur during encryption, XSS, shell, etc., found on the website. All kinds of ideas can make Lockbit more dangerous and functional, such as injections, detection of situations that may reveal the identities of collaborators, TOX Messenger vulnerabilities used for messaging, IP address learning for servers in the TOR network, root access, database dumping, and all kinds of ideas that can make it more dangerous and functional.

This blog post comes from the “LockBit 3.0 Technical Analysis Report” by the Brandefense CTI Analyst Team. For more details about the analysis, download the report.

Frequently Asked Questions.

What is LockBit 3.0?

LockBit 3.0, also called LockBit Black, is a ransomware-as-a-Service operation and a successor to LockBit 2.0. MITRE ATT&CK lists June 2022 as its first appearance.

Is LockBit 3.0 related to BlackMatter?

CISA and MITRE ATT&CK both say LockBit 3.0 shares similarities with BlackMatter. They describe similarities, not a direct successor link.

How does LockBit publish stolen data?

The group runs leak sites where it publishes victim names and captured data if the ransom is not paid. This post adds that version 3.0 added a search feature and mirror .onion addresses.

What was the LockBit 3.0 bug bounty?

According to this post, the group announced a bug bounty program that asks for ideas to fix bugs or improve features, such as site flaws and ways to expose affiliates.

Sources

  1. 1 CISA advisory AA23-165A, Understanding Ransomware Threat Actors: LockBit
  2. 2 MITRE ATT&CK, LockBit 3.0 (S1202)
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