GridinSoft Threat Intelligence
lum_sdk32.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-10-05 23:01:26 (7 months ago); latest analysis 2025-10-05 23:01:26 (7 months ago).
Company metadata: BrightData Ltd. (certified). Product metadata: Bright SDK (certified).
Signed by Bright Data Ltd. The signature is not reported as trusted and valid, which can indicate tampering, repackaging, or copied publisher data.
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
lum_sdk32.dll is a Windows file recorded in the ThreatInfo database. It is associated with Bright SDK (certified). The reported company name is BrightData Ltd. (certified). The current detection status is Undefined, based on the latest analysis from 2025-10-05 23:01:26 (7 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
| Product Name: | Bright SDK (certified) |
| Company Name: | BrightData Ltd. (certified) |
| MD5: | 4f58664ed7921731645542cabe9a14a6 |
| Size: | 4 MB |
| First Published: | 2025-10-05 23:01:26 (7 months ago) |
| Latest Published: | 2025-10-05 23:01:26 (7 months ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-10-05 23:01:26 (7 months ago) |
Overview
| Signed By: | Bright Data Ltd |
| Status: | Invalid (digital signature could be stolen or file could be patched) |
The signature on lum_sdk32.dll is not reported as trusted and valid. Invalid or suspicious signature data can indicate tampering, repackaging, or an unrelated file using copied publisher information.
Common Places:
| %localappdata%\bright-vpn-updater |
ThreatInfo has observed lum_sdk32.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 lum_sdk32.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 Russia 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 lum_sdk32.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
lum_sdk32.dll is identified as pe for 32-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.
77a08a55ccbeb8da81ee57182e48f5b4
a332bdc62be9f4855bfa72f5d4269d3b
55124d8a032faf0bef893f543cdfef65
bf619eac0cdf3f68d496ea9344137e8b
a4c39053ede03cce1e6fbf9c56f2ea4b
2ab84bb6c9cd238ba9f7d4def58caead
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.