GridinSoft Threat Intelligence

avformat.dll file report

Under review File reputation report
MD5 b5db7645421905a479c38d09f9b33496
Latest seen 2025-04-12 23:02:03 (a year ago)
First seen 2025-04-12 23:02:03 (a year ago)
Size 1 MB
Publisher iQIYI
Product Decoder Library
Signed by BeiJing IQIYI Science & Techonology Co.,Ltd;Beijing iQIYI Science & Technology Co., Ltd.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2025-04-12 23:02:03 (a year ago); latest analysis 2025-04-12 23:02:03 (a year ago).

Publisher context

Company metadata: iQIYI. Product metadata: Decoder Library.

Digital signature

Signed by BeiJing IQIYI Science & Techonology Co.,Ltd;Beijing iQIYI Science & Technology Co., Ltd.. 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

avformat.dll is a Windows file recorded in the ThreatInfo database. It is associated with Decoder Library. The reported company name is iQIYI. The current detection status is Undefined, based on the latest analysis from 2025-04-12 23:02:03 (a year 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: Decoder Library
Company Name: iQIYI
MD5: b5db7645421905a479c38d09f9b33496
Size: 1 MB
First Published: 2025-04-12 23:02:03 (a year ago)
Latest Published: 2025-04-12 23:02:03 (a year ago)
Status: Undefined (on last analysis)
Analysis Date: 2025-04-12 23:02:03 (a year ago)

Overview

Signed By: BeiJing IQIYI Science & Techonology Co.,Ltd;Beijing iQIYI Science & Technology Co., Ltd.
Status: Valid

The signature on avformat.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%\iqiyi video\lstyle\13.3.5.9162\qyappplugin

ThreatInfo has observed avformat.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 avformat.dll across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country China
Share 100.0%
Low High activity

The strongest geographic signal for this file is China 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:

Windows 7 100.0%

The most common operating system signal for avformat.dll is Windows 7 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

avformat.dll is identified as pe for 64-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.

Format pe
Architecture 64-bit
Subsystem Windows GUI
Entry point 0x00001037
Image base 0x0000000180000000

PE Sections:

Sections 8
Raw data 1804288

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

.text 1263104 bytes · 70.0% of section data
MD5 f6ee14bdcc15e62147e430f82f1e6d7a
.rdata 400896 bytes · 22.2% of section data
MD5 ba4a8b5a55768ae9cd8b525734a47e1d
.data 65536 bytes · 3.6% of section data
MD5 c87c57badd94c5bf70db0ceded15fe5d
.pdata 36864 bytes · 2.0% of section data
MD5 2be06063a3d1e0f9fc4bd2897cc079dc
.idata 20992 bytes · 1.2% of section data
MD5 0b0c842e8db5d0b6560a3d838c95bc17
.00cfg 512 bytes · 0.0% of section data
Uncommon name
MD5 d013c4b81929885b9b504cf1509fec3c
.rsrc 1536 bytes · 0.1% of section data
MD5 a28618cdb57d1cc4c36958652bebee7b
.reloc 14848 bytes · 0.8% of section data
MD5 fce83fd705b9c9531f5e4177c7a22a6e

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 b5db7645421905a479c38d09f9b33496.
  • 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.