mp4demux.dll file report

MD5 efc4eff23278060a740a19713e8c569c
Latest seen 2026-01-06 23:00:31 (4 months ago)
First seen 2017-05-27 03:07:56 (8 years ago)
Size 200 KB

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-05-27 03:07:56 (8 years ago); latest analysis 2026-01-06 23:00:31 (4 months ago).

Publisher context

Company metadata: GDCL (www.gdcl.co.uk). Product metadata: GDCL Mpeg4 Demux.

Observed locations

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

  1. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

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.

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)
%programfiles%\qvodplayer\codecs
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%programfiles%\qvodplayer
%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.

60.6%
15.5%
7.0%
5.6%
4.2%
2.8%
1.4%
1.4%
1.4%

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.

Windows 10 51.4%
Windows 7 37.5%
Windows 8.1 6.9%
Windows XP 2.8%
Windows 8 1.4%

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.

mp4demux.dll is identified as pe for 32 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.

Subsystem: Windows GUI
PE Type: pe
OS Bitness: 32
Image Base: 0x10000000
Entry Address: 0x00012321

PE Sections:

Name Size of data MD5
.text 147456 5907573f131e2daa511d57ccffa37b3e
.rdata 28672 77ef61ebca03a69b07b31fd510b4a28c
.data 8192 bdf8141d743b50343195344de597a42e
.rsrc 4096 5447f85f4b8afebc7e7078fdd4ae0590
.reloc 12288 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.

More information: