GridinSoft Threat Intelligence

avcodec-lav-55.dll file report

Under review File reputation report
MD5 6d5925da1c36b33dcbffa571ed7b3c29
Latest seen 2025-07-24 23:01:18 (10 months ago)
First seen 2017-05-21 12:05:42 (9 years ago)
Size 7 MB
Publisher FFmpeg Project
Product FFmpeg
Signed by Hendrik Leppkes

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-05-21 12:05:42 (9 years ago); latest analysis 2025-07-24 23:01:18 (10 months ago).

Publisher context

Company metadata: FFmpeg Project. Product metadata: FFmpeg.

Digital signature

Signed by Hendrik Leppkes. The signature is reported as valid, but signed files can still be bundled or abused.

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.

File context

avcodec-lav-55.dll is a Windows file recorded in the ThreatInfo database. It is associated with FFmpeg. The reported company name is FFmpeg Project. The current detection status is Undefined, based on the latest analysis from 2025-07-24 23:01:18 (10 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: FFmpeg
Company Name: FFmpeg Project
MD5: 6d5925da1c36b33dcbffa571ed7b3c29
Size: 7 MB
First Published: 2017-05-21 12:05:42 (9 years ago)
Latest Published: 2025-07-24 23:01:18 (10 months ago)
Status: Undefined (on last analysis)
Analysis Date: 2025-07-24 23:01:18 (10 months ago)

Overview

Signed By: Hendrik Leppkes
Status: Valid

The signature on avcodec-lav-55.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%\freecodecpack\lavfilters
%programfiles%\freecodecpack
%sysdrive%\programmi\freecodecpack

ThreatInfo has observed avcodec-lav-55.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 avcodec-lav-55.dll across 52 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Germany
Share 22.2%
Low High activity

The strongest geographic signal for this file is Germany with 22.2% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 7 47.6%
Windows 10 40.1%
Windows 8.1 7.5%
Windows XP 2.4%
Windows Vista 1.2%
Windows 8 0.9%
Windows Embedded 8.1 0.3%

The most common operating system signal for avcodec-lav-55.dll is Windows 7 with 47.6% 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

avcodec-lav-55.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.

Format pe
Architecture 32-bit
Subsystem Windows CUI
Entry point 0x00001420
Image base 0x69f00000

PE Sections:

Sections 11
Raw data 7642112

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 5462016 bytes · 71.5% of section data
Large raw data
MD5 044de0e94100539164533c882d5e9644
.data 61952 bytes · 0.8% of section data
MD5 1d5be672931354abd998a05f69f498cb
.rdata 1991168 bytes · 26.1% of section data
MD5 fd3b9e7a570788008f1f3251a03d2e46
.rodata 10752 bytes · 0.1% of section data
MD5 f593dfa7dc40853ca2d55affc92c1df4
.bss 0 bytes · 0.0% of section data
MD5 00000000000000000000000000000000
.edata 9216 bytes · 0.1% of section data
MD5 0da83b554dc55edcf62e7a6e4a0eb703
.idata 7680 bytes · 0.1% of section data
MD5 4d4b8519e6fd061901d0c77d01b5ec3e
.CRT 512 bytes · 0.0% of section data
MD5 ca79f3a47e47a9951a72a95b86e977f8
.tls 512 bytes · 0.0% of section data
MD5 27f2faa553495994529bdc35a215833b
.rsrc 1024 bytes · 0.0% of section data
MD5 41ad9c3606f9987f9ce6538085fa15ef
.reloc 97280 bytes · 1.3% of section data
MD5 1fc77e3d2b09f8dc1523a08284241fb1

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.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 6d5925da1c36b33dcbffa571ed7b3c29.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.