The LunarLogsFree Dump: 34,339 Stolen Login Credentials Hit the Dark Web

In June 2025, a Telegram user affiliated with the Lunar Cloud Logs operation uploaded a stealer log batch called LunarLogsFree, one of 436 log files released by this group. The upload exposed 34,339 records containing email adresses, plaintext passwords, and endpoint URLs. The name LunarLogsFree signals that these credentials were distributed at no cost, meaning an unusually large number of threat actors had immediate access to the data. Free distribution dramatically accelerates the exploitation timeline, as thousands of bad actors can begin credential stuffing attacks within hours of the initial upload.

Why This Is Dangerous

The word "free" in LunarLogsFree is the most alarming detail. Paid stealer logs are typically accessed by a smaller pool of buyers with specific targets. Free logs get flooded across every cybercriminal channel simultaneosly. That means the 34,339 people in this dataset faced an immediate, coordinated threat from hundreds or thousands of attackers at once rather than a single opportunistic criminal. With plaintext passwords in the file, there was no technical barrier preventing any of them from attempting logins the moment the file was published.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (endpoint and API host data)

Why This Matters

Lunar Cloud Logs is not a single incident. With 436 log files released under this operation, the total number of exposed records runs into the hundreds of thousands. LunarLogsFree is one piece of a much larger, ongoing campaign against everyday internet users. Even if your data does not appear in this specific file, other files from the same operation may contain your credentals. This kind of persistent, multi-batch operation represents exactly why continuous breach monitoring matters more than one-time password changes.

How Stealer Logs Work

Stealer malware infiltrates devices through phishing emails, cracked software downloads, and malicious browser extensions. Once active, it silently collects saved browser passwords, API keys, session cookies, and the URLs of recently visited sites. This data is packaged into structured log files and exfiltrated to a command-and-control server before being uploaded to Telegram. Operations like Lunar Cloud Logs then distribute these files in bulk, often for free, to maximize their reach and establish credibility within the cybercriminal community.

Check If You Are Affected

HEROIC's free scanner checks your email address against over 400 billion exposed records, including the LunarLogsFree stealer log and hundreds of other datasets from the Lunar Cloud Logs operation. If your credentials appear in any known breach, you will receive an immediate alert with guidance on what to do next. Run your free scan now and find out whether your login information is already circulating on the dark web.