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Summary
RedLine Stealer is a malware that emerged in 2020, discovered in underground forums being sold in different plans, starting from $100 per month. The malware offers many capabilities for device reconnaissance, remote control, and information stealing, including:
- Data from browsers (e.g. login, passwords, credit cards, cookies, etc.);
- Data from Discord and Telegram (e.g. chat logs, tokens, etc.);
- VPN and FTP Credentials;
Since its discovery, attackers have used many different vectors to spread this stealer, including through fake installers and fake game hacking tools. Also, RedLine Stealer was found in compromised devices by the DEV-0537 hacking group (a.k.a. lapsus$).
In April 2022, Netskope Threat Labs identified a new RedLine Stealer campaign spread on YouTube, using a fake bot to buy Mystery Box NFT from Binance. The video description leads the victim to download the fake bot, which is hosted on GitHub.
In this blog post, we will analyze this campaign, showing how it’s being spread and how the fake bot leads to RedLine Stealer.
YouTube Videos
The malware is spread through YouTube videos that lure victims into downloading a fake bot to automatically buy Binance NFT Mystery Boxes. At this point, we found five videos across multiple channels that are part of the same campaign. All the URLs can be found in our GitHub repository.
The video description provides details and the download link for the fake bot, which is supposed to be presented as a Chrome extension.
The video description also contains different tags, probably to increase its visibility, including:
binance, nft, bot, buy, mysterybox, box, busd, autobuy, cryptobot, binance, bitcoin, crypto trading bot, cryptocurrency, binance trading bot, binance trade bot, bitcoin trading bot, btc, bot, binance bot trading, nance grid trading, bnb, binance nft, bot for binance, binance trading tutorial
Stage 01 – Loader
All the videos we found are pointing to the same GitHub URL, downloading a file named “BinanceNFT.bot v.1.3.zip”.
Once we decompress the ZIP file, we have the packed RedLine sample (“BinanceNFT.bot v.1.3.exe”) and a Microsoft Visual C++ Redistributable installer (“VC_redist.x86.exe”).
