GridinSoft Threat Intelligence

avutil-lav-55.dll file report

Under review File reputation report
MD5 4f26aad0e6f8b646024b4e8b63541bde
Latest seen 2022-08-25 23:14:10 (3 years ago)
First seen 2017-09-12 06:05:58 (8 years ago)
Size 555 KB
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 2017-09-12 06:05:58 (8 years ago); latest analysis 2022-08-25 23:14:10 (3 years 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

avutil-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 2022-08-25 23:14:10 (3 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: FFmpeg
Company Name: FFmpeg Project
MD5: 4f26aad0e6f8b646024b4e8b63541bde
Size: 555 KB
First Published: 2017-09-12 06:05:58 (8 years ago)
Latest Published: 2022-08-25 23:14:10 (3 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2022-08-25 23:14:10 (3 years ago)

Overview

Signed By: Hendrik Leppkes
Status: Valid

The signature on avutil-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%\splitcam\dsfilters\lavfilters
%programfiles%\splitcam\dsfilters
%programfiles%\frol9999\player\filters
%programfiles%\software\note5\note5_5.1.4.36469\main

ThreatInfo has observed avutil-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 avutil-lav-55.dll across 19 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Spain
Share 22.5%
Low High activity

The strongest geographic signal for this file is Spain with 22.5% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 67.1%
Windows 7 18.3%
Windows 8.1 11.0%
Windows Vista 3.7%

The most common operating system signal for avutil-lav-55.dll is Windows 10 with 67.1% 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

avutil-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 0x000013e0
Image base 0x10000000

PE Sections:

Sections 11
Raw data 561664

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

.text 416768 bytes · 74.2% of section data
MD5 a2fce61311b932d0b1bf2d627c3c2889
.data 512 bytes · 0.1% of section data
MD5 87ea97d162ab6819fd0cd282d5c9222c
.rdata 111616 bytes · 19.9% of section data
MD5 c7019ab0610713b1b78cc2de43089a61
.rodata 512 bytes · 0.1% of section data
MD5 605bbce2e881afef3511444974fdfb98
.bss 0 bytes · 0.0% of section data
MD5 00000000000000000000000000000000
.edata 14848 bytes · 2.6% of section data
MD5 51839079c0e10b6d850ce0527b5491d9
.idata 3584 bytes · 0.6% of section data
MD5 b92cfb93c86a2bd9b2eb443b72c898a1
.CRT 512 bytes · 0.1% of section data
MD5 24916a81f877c23025d861f9d2edf3d2
.tls 512 bytes · 0.1% of section data
MD5 47a11200b86951d4a937c0fb9cf755a6
.rsrc 1024 bytes · 0.2% of section data
MD5 a594475ba5aee089e0181b8853f79514
.reloc 11776 bytes · 2.1% of section data
MD5 200c0ed8459e737eb9d2442dcbaf26de

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 4f26aad0e6f8b646024b4e8b63541bde.
  • 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.