GridinSoft Threat Intelligence

avformat-56.dll.quarantined file report

Under review File reputation report
MD5 0aa14936a14124c42920b74cb7c56bf6
Latest seen 2021-01-02 00:17:04 (5 years ago)
First seen 2018-04-30 04:05:18 (8 years ago)
Size 597 KB
Publisher FFmpeg Project
Product FFmpeg
Signed by YY Inc.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2018-04-30 04:05:18 (8 years ago); latest analysis 2021-01-02 00:17:04 (5 years ago).

Publisher context

Company metadata: FFmpeg Project. Product metadata: FFmpeg.

Digital signature

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

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

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-56.dll.quarantined 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 2021-01-02 00:17:04 (5 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: 0aa14936a14124c42920b74cb7c56bf6
Size: 597 KB
First Published: 2018-04-30 04:05:18 (8 years ago)
Latest Published: 2021-01-02 00:17:04 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-01-02 00:17:04 (5 years ago)

Overview

Signed By: YY Inc.
Status: Valid

The signature on avformat-56.dll.quarantined 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:

%appdata%\duowan\yy\yycomstore\2052\com.yy.kefu

ThreatInfo has observed avformat-56.dll.quarantined 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.

File Names:

2 observed names
avformat-56.dll avformat-56.dll.quarantined

This hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.

Geographic signal

Observed country distribution

ThreatInfo has seen avformat-56.dll.quarantined across 11 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Taiwan
Share 46.1%
Low High activity

The strongest geographic signal for this file is Taiwan with 46.1% 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 87.6%
Windows 7 10.1%
Windows 8.1 2.2%

The most common operating system signal for avformat-56.dll.quarantined is Windows 10 with 87.6% 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

avformat-56.dll.quarantined 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 0x00001060
Image base 0x63400000

PE Sections:

Sections 11
Raw data 603136

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

.text 445440 bytes · 73.9% of section data
MD5 9f1864e8deba37e3d8467ec9b0944c3c
.data 1536 bytes · 0.3% of section data
MD5 e842ff85a085e85e30f9afea2aff636c
.rdata 92160 bytes · 15.3% of section data
MD5 4599361f9cee20803027fa5c28fff570
/4 40960 bytes · 6.8% of section data
Uncommon name
MD5 80b000e2f35617fd1d1ea6bd5a8c6c7a
.bss 0 bytes · 0.0% of section data
MD5 00000000000000000000000000000000
.edata 4608 bytes · 0.8% of section data
MD5 7a5cb0599096d669ce9da4a9b46bd648
.idata 7168 bytes · 1.2% of section data
MD5 8c7ce36c6dcaacd29d95d72cf369edb5
.CRT 512 bytes · 0.1% of section data
MD5 eeec3aa9bd7483a8c1608759342b7f4d
.tls 512 bytes · 0.1% of section data
MD5 2b19755806a88fc62ac3d95c82373e5d
.rsrc 1024 bytes · 0.2% of section data
MD5 7bb5b688d7bfdc3c6c83398207ca5275
.reloc 9216 bytes · 1.5% of section data
MD5 3b15920010dab8d97a8080680f8505a2

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 0aa14936a14124c42920b74cb7c56bf6.
  • 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.