Newtonsoft.Json.dll file report

MD5 8f81c9520104b730c25d90a9dd511148
Latest seen 2026-01-01 23:01:41 (4 months ago)
First seen 2020-09-29 20:13:52 (5 years ago)
Size 560 KB
Publisher Newtonsoft
Product Json.NET

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2020-09-29 20:13:52 (5 years ago); latest analysis 2026-01-01 23:01:41 (4 months ago).

Publisher context

Company metadata: Newtonsoft. Product metadata: Json.NET.

Digital signature

Signed by Json.NET (.NET Foundation). 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.

Newtonsoft.Json.dll is a Windows file recorded in the ThreatInfo database. It is associated with Json.NET. The reported company name is Newtonsoft. The current detection status is Undefined, based on the latest analysis from 2026-01-01 23:01:41 (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: Json.NET
Company Name: Newtonsoft
MD5: 8f81c9520104b730c25d90a9dd511148
Size: 560 KB
First Published: 2020-09-29 20:13:52 (5 years ago)
Latest Published: 2026-01-01 23:01:41 (4 months ago)
Status: Undefined (on last analysis)
Analysis Date: 2026-01-01 23:01:41 (4 months ago)
Signed By: Json.NET (.NET Foundation)
Status: Valid

The signature on Newtonsoft.Json.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.

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ThreatInfo has observed Newtonsoft.Json.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.

14.8%
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The strongest geographic signal for this file is Russian Federation with 14.8% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

Windows 10 95.5%
Windows 8.1 3.6%
Windows 7 0.7%
Windows 8 0.2%

The most common operating system signal for Newtonsoft.Json.dll is Windows 10 with 95.5% 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.

Newtonsoft.Json.dll is identified as pe for 32 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.

Subsystem: Windows CUI
PE Type: pe
OS Bitness: 32
Image Base: 0x10000000
Entry Address: 0x0008b836

.NET Info:

MVID: 569252d8-4325-4bb0-9feb-52c55f3e7f47

PE Sections:

Name Size of data MD5
.text 563712 647910966e82c530cb531885883110e9
.rsrc 1536 b65bca6c43f94a4414ea8a852fc1735e
.reloc 512 70251e2b6b84048497deafb83f7fc91c

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: