Breach Intelligence Report 26 Sep 2025

QLogs_Offical 485 PCS May 15, 2025: 15,340 US Credentials From Non-Standard Stealer Batch

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HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
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Records Exposed 15,340
Source Type Stealer log
Origin Telegram
Password Type plaintext

485 Files, 6 Days: What a Non-Standard Batch Reveals About Early QLogs

Not every QLogs batch arrived in a round number. The QLogs_Offical 485 PCS release, collected May 15 and leaked May 21, 2025, is one of several early-series batches with a file count that doesn't fit the standardized increments the operation would later adopt. At 485 files and 15,340 US credential records, this batch is comparatively small -- but its 6-day staging window and ~31.6 records-per-file yield offer a clear window into the mid-May 2025 state of the QLogs pipeline: active, irregular, and still finding its operational rythm.


QLogs_Offical 485 PCS (May 2025): Stealer Log Summary

  • Records Exposed: 15,340
  • Data Types: Email addresses, plaintext passwords, URLs
  • Breach Type: Stealer log -- credentials harvested from malware-infected endpoints, not a direct database breach
  • Password Type: Plaintext -- captured directly from browser sessions and credential stores by infostealer malware
  • Country: United States
  • Date Leaked: May 21, 2025

~31.6 Records Per File: Moderate Yield, Consistent PCS Profile

A per-file yield of approximately 31.63 records is moderate for a PCS batch. Consumer endpoints in the Personal Consumer Systems category typically carry browser-stored credentials across email, banking, retail, and social media platforms. The 31.6 figure suggests endpoints with a reasonable credential density -- not sparse single-service accounts, but not the multi-session aggregates that would later drive yields into the 50-80+ range in VIP-labeled batches. At this stage in the series, the operator had not yet implemented the filtering or targeting refinements that would elevate per-file yields acros the board.


The 6-Day Staging Window: Between Same-Day and Month-Long

The May 15 collection and May 21 release represents a 6-day staging window -- notably shorter than the ~30-day holds on the April MIX batches, but longer than the aggressive same-day and next-day releases that would define some June 2025 batches. The mid-May period appears to be a transition zone for the QLogs operation: moving away from extended backlogs toward the rapid-release cadence that characterized the series at its peak. The 6-day window is consistent with an operator who has begun active distribution but hasn't yet optimized the pipeline for maximum speed.


485 Files: Reading the Raw Count

The 485 figure doesn't align with any standard QLogs batch size. Alongside other irregular counts from this era -- 750, 1,005 -- it indicates the operator was releasing whatever the harvest produced rather than curating to a target size. In a mature infostealer operation, file counts are typically standardized by post-processing: endpoints are filtered by yield threshold, and batches are packaged to predefined sizes. The presence of 485 as a count in May 2025, compared to the rigid 300/500/1000/1500/2000/2500 structure that emerged in June, marks this batch firmly in the pre-standardizaton phase of the QLogs series.


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Breach Breakdown

Domain N/A
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 26 Sep 2025
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Risk Score: 8.7/10 - Critical

Data Exposure Analysis

Passwords Critical
Financial High
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Breach Timeline Analysis

March 2024 Multiple credentials exposed in recent data breach
January 2024 Password found in dark web marketplace
December 2023 Personal information leaked in major security incident

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