GridinSoft Threat Intelligence
mp4demux.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-05-27 03:07:56 (8 years ago); latest analysis 2026-01-06 23:00:31 (4 months ago).
Company metadata: GDCL (www.gdcl.co.uk). Product metadata: GDCL Mpeg4 Demux.
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
mp4demux.dll is a Windows file recorded in the ThreatInfo database. It is associated with GDCL Mpeg4 Demux. The reported company name is GDCL (www.gdcl.co.uk). The current detection status is Undefined, based on the latest analysis from 2026-01-06 23:00:31 (4 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: | GDCL Mpeg4 Demux |
| Company Name: | GDCL (www.gdcl.co.uk) |
| MD5: | efc4eff23278060a740a19713e8c569c |
| Size: | 200 KB |
| First Published: | 2017-05-27 03:07:56 (8 years ago) |
| Latest Published: | 2026-01-06 23:00:31 (4 months ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2026-01-06 23:00:31 (4 months ago) |
Common Places:
| %programfiles%\qvodplayer\codecs |
| %programfiles%\qvodplayer |
ThreatInfo has observed mp4demux.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 mp4demux.dll across 9 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Taiwan with 60.6% 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 mp4demux.dll is Windows 10 with 51.4% 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
mp4demux.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.
5907573f131e2daa511d57ccffa37b3e
77ef61ebca03a69b07b31fd510b4a28c
bdf8141d743b50343195344de597a42e
5447f85f4b8afebc7e7078fdd4ae0590
4b433af4d137c9c12d62b505ecfff9e0
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.