GridinSoft Threat Intelligence

dynabookSystemService.exe file report

Under review File reputation report
MD5 d685fee9e6200dffec14659f8c934e2c
Latest seen 2021-02-16 04:48:28 (5 years ago)
First seen 2021-02-15 04:36:16 (5 years ago)
Size 42 MB
Publisher Dynabook Inc.
Product dynabook System Driver
Signed by Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-02-15 04:36:16 (5 years ago); latest analysis 2021-02-16 04:48:28 (5 years ago).

Publisher context

Company metadata: Dynabook Inc.. Product metadata: dynabook System Driver.

Digital signature

Signed by Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher. 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

dynabookSystemService.exe is a Windows file recorded in the ThreatInfo database. It is associated with dynabook System Driver. The reported company name is Dynabook Inc.. The current detection status is Undefined, based on the latest analysis from 2021-02-16 04:48:28 (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: dynabook System Driver
Company Name: Dynabook Inc.
MD5: d685fee9e6200dffec14659f8c934e2c
Size: 42 MB
First Published: 2021-02-15 04:36:16 (5 years ago)
Latest Published: 2021-02-16 04:48:28 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-02-16 04:48:28 (5 years ago)

Overview

Signed By: Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on dynabookSystemService.exe 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:

%commonappdata%\reviversoft\driver reviver\downloads\d21e34f4-8286-480d-8cf9-f11bca0d3b10
%commonappdata%\reviversoft\driver reviver\downloads\96

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

Top country Japan
Share 100.0%
Low High activity

The strongest geographic signal for this file is Japan 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 10 100.0%

The most common operating system signal for dynabookSystemService.exe is Windows 10 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

dynabookSystemService.exe 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 0x0006cc50
Image base 0x0000000140000000

PE Sections:

Sections 6
Raw data 44748288

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

.text 2229760 bytes · 5.0% of section data
MD5 51abb8629318bb0b0eb53fb19af5d165
.rdata 846848 bytes · 1.9% of section data
MD5 8daba12342c51fdc455c3e6d8e350546
.data 41317376 bytes · 92.3% of section data
Large raw data
MD5 6c89cee9a0c97581d8f0c8dd57a0eb25
.pdata 97792 bytes · 0.2% of section data
MD5 b7d0d37cdcdb744c0e30ad9da33e8098
.rsrc 192512 bytes · 0.4% of section data
MD5 a39662bdbf4b098d501b9d8d2a529d55
.reloc 64000 bytes · 0.1% of section data
MD5 26f28d08cc1623cb28614d20de3a3f76

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 d685fee9e6200dffec14659f8c934e2c.
  • 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.