GridinSoft Threat Intelligence
qpdf26.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-06-30 23:00:38 (11 months ago); latest analysis 2025-06-30 23:00:38 (11 months ago).
Signed by 天津迅读科技有限公司. The signature is reported as valid, but signed files can still be bundled or abused.
ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.
Recommended action
What to do next
- Use the hash and metadata below to verify the exact file identity.
- Review publisher, signature, paths, and PE details for inconsistencies.
- Run a local scan if the file appears unexpectedly or starts with Windows.
File context
qpdf26.dll is a Windows file recorded in the ThreatInfo database. The current detection status is Undefined, based on the latest analysis from 2025-06-30 23:00:38 (11 months ago).
ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.
File Details
| MD5: | 598b5681fc30976ea80bd1eac66a4984 |
| Size: | 1 MB |
| First Published: | 2025-06-30 23:00:38 (11 months ago) |
| Latest Published: | 2025-06-30 23:00:38 (11 months ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-06-30 23:00:38 (11 months ago) |
Overview
| Signed By: | 天津迅读科技有限公司 |
| Status: | Valid |
The signature on qpdf26.dll is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.
Common Places:
| %appdata%\convert |
ThreatInfo has observed qpdf26.dll in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.
Geographic signal
Observed country distribution
ThreatInfo has seen qpdf26.dll across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is China with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.
OS Version:
The most common operating system signal for qpdf26.dll is Windows 10 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.
Analysis
qpdf26.dll is identified as pe for 32-bit systems. The subsystem is Windows CUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
c4c35e12c8a882c11331e50bcc25812b
db3d833e018bfe52e9bdd667f2d1ff04
893a0e1a90a1b8bf247909acefaf01ca
7074533914ad1b8f38fedaa19ab994e1
d41d8cd98f00b204e9800998ecf8427e
2a399f944b03d8735cd9f6f0953c884e
2b927fe2eabb4c7ecafa9093ce0d1ad9
fa809dfcee5bee8d6320c2519a44abcb
bf619eac0cdf3f68d496ea9344137e8b
84c3eec25375ced9b517d1c6f01320e4
PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.
Report conclusion
This file is still under review
ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.