GridinSoft Threat Intelligence
bl-sign.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2023-09-04 23:21:19 (2 years ago); latest analysis 2023-09-07 23:32:22 (2 years ago).
Company metadata: Avanquest Software (7270356 Canada Inc.). Product metadata: PDF Suite 20.
Signed by Avanquest Software (7270356 Canada Inc). 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
bl-sign.dll is a Windows file recorded in the ThreatInfo database. It is associated with PDF Suite 20. The reported company name is Avanquest Software (7270356 Canada Inc.). The current detection status is Undefined, based on the latest analysis from 2023-09-07 23:32:22 (2 years 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
| Product Name: | PDF Suite 20 |
| Company Name: | Avanquest Software (7270356 Canada Inc.) |
| MD5: | 8b6aa122638a8e56b7168918ad50f681 |
| Size: | 1 MB |
| First Published: | 2023-09-04 23:21:19 (2 years ago) |
| Latest Published: | 2023-09-07 23:32:22 (2 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2023-09-07 23:32:22 (2 years ago) |
Overview
| Signed By: | Avanquest Software (7270356 Canada Inc) |
| Status: | Valid |
The signature on bl-sign.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:
| %programfiles% |
ThreatInfo has observed bl-sign.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 bl-sign.dll across 2 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Colombia with 50.0% 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 bl-sign.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
bl-sign.dll is identified as pe for 64-bit systems. The subsystem is Windows GUI. 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.
ac97bee2086d75220940da75e3b6967e
4e93729684e1d377ed77b1d84104fda7
1a0fd51079cd0b3dba1796ebf1fdf6f3
41abfc82b85c7b6b0c6e605846020ebd
f47058d6a696869a4ada6583f14719de
e8ced265ea2b130ed9199f69c58bbbde
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.