Security Alert: Confirmed Malware

This extension was removed from the Chrome Web Store as malware. Do not install it.Extension: PDF Merge Plus

CRITICAL RISKRemoved from Chrome Web Store

PDF Merge Plus

ID: hoajgiihnacokfbpfnglclkfkhflogep

Could be malicious

Supported Languages

🇧🇩Bengali

🇧🇷Brazilian Portuguese

🇬🇧British English

🇧🇬Bulgarian

🇪🇸Catalan

🇨🇳Chinese (Simplified)

🇹🇼Chinese (Traditional)

🇭🇷Croatian

🇨🇿Czech

🇩🇰Danish

🇳🇱Dutch

🇺🇸English

🇪🇪Estonian

🇵🇭Filipino

🇫🇮Finnish

🇫🇷French

🇩🇪German

🇬🇷Greek

🇮🇳Gujarati

🇮🇳Hindi

🇭🇺Hungarian

🇮🇩Indonesian

🇮🇹Italian

🇯🇵Japanese

🇰🇷Korean

🇱🇻Latvian

🇱🇹Lithuanian

🇲🇾Malay

🇮🇳Malayalam

🇮🇳Marathi

🇳🇴Norwegian

🇵🇱Polish

🇵🇹Portuguese

🇷🇴Romanian

🇷🇺Russian

🇷🇸Serbian

🇸🇰Slovak

🇸🇮Slovenian

🇪🇸Spanish

🇸🇪Swedish

🇮🇳Tamil

🇮🇳Telugu

🇹🇭Thai

🇹🇷Turkish

🇺🇸US English

🇻🇳Vietnamese

Extension Info & Metadata

Status

Removed

Version

2.14

Size

1.03 MB

Rating

4.7/5

Reviews

Users

400,000

Type

Extension

Updated

Nov 8, 2020

Publisher Contextual Analysis

Author: Samuel ClarkView Profile
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes

Total Extensions

Active

Obsolete

Listed

Unlisted

Total Users

400,000

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Privacy focused PDF merge tool

PDF Merge Plus is a tool that combines two or more pdf files into one. Features: ⭐ Merge two or more documents. We maintain page size (A4, letter size, or whatever size it have) ⭐ Unlike many other extensions in the store, we don’t transfer your documents to the cloud. ⭐ You can merge documents that opened in your browser. Quick start: open the extension’s popup and read the instructions.

User Growth

No data available

No user growth data available for this extension

Rating Count

No data available

No rating count data available for this extension

Average Rating

No data available

No rating data available for this extension

Extracted Data

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By severity

Critical1

High3

Medium2

Low0

Versions scanned

Showing 2 of 2 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
2.14 Code review	3
2.13 Code review	3

Extension Version	Code Review Findings
2.14	3
2.13	3

Files with findings

3 distinct paths — top paths by unique finding count:

popup.js3
manifest.json2
background.js1

S.No.	Category	Severity	File	Summary	Found in Version
1	Remote Code Loading	critical	background.js (line 51)	This code dynamically constructs and injects a remote Google Tag Manager script into the extension background page. It is embedded inside what otherwise looks like a third-party `chrome-promise` helper, and it uses st…	2.14
2	Tracking	high	manifest.json (line 19)	The manifest explicitly relaxes the extension CSP to allow remote scripts from Google Analytics and Google Tag Manager. In combination with the background-page injector, this provides a direct mechanism for remotely s…	2.14
3	Unauthorized Data Collection	high	popup.js (line 76)	The extension calls `chrome.tabs.query({}, resolve)` with no filter whatsoever, retrieving every single open tab across all windows. It then calls `chrome.tabs.executeScript` on every tab's ID, injecting JavaScript co…	2.13
4	Unauthorized Data Collection	high	popup.js (line 77)	At line 77 the full `tabs` object — containing the URLs of every open tab — is held in memory. On line 89 the extension iterates over ALL tab URLs to find those ending in `.pdf`. This means the extension enumerates th…	2.13
5	Remote Code Loading	medium	manifest.json (line 19)	The Content Security Policy explicitly whitelists `www.google-analytics.com`, `www.googletagmanager.com`, and the entire `*.googleapis.com` wildcard as allowed script sources, but none of the extension's HTML files (`…	2.13
6	Unauthorized Data Collection	medium	popup.js (line 83)	Whenever the popup opens, the extension enumerates every open tab and injects code into each one to scrape `object`, `embed`, `iframe`, and tab URLs for PDF links. That is broader than a single active-tab workflow and…	2.14

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URLs

IPv4

IPv6

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

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github.com	/tfoxy/chrome-promise	https://github.com/tfoxy/chrome-promise
www.w3.org	/2000/svg	http://www.w3.org/2000/svg
clients2.google.com	/service/update2/crx	https://clients2.google.com/service/update2/crx
www.google-analytics.com	-	https://www.google-analytics.com
www.googletagmanager.com	-	https://www.googletagmanager.com
*.googleapis.com;	-	https://*.googleapis.com;
getbootstrap.com	-	https://getbootstrap.com/
github.com	/twbs/bootstrap/blob/master/LICENSE	https://github.com/twbs/bootstrap/blob/master/LICENSE
www.apache.org	/licenses/LICENSE-2.0	http://www.apache.org/licenses/LICENSE-2.0
github.com	/niklasvh/base64-arraybuffer	https://github.com/niklasvh/base64-arraybuffer

Showing 1 to 10 of 100 rows

Rows per page:

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15.9.1.15	IPv4	-
7.3.4.3	IPv4	-
8.6.4.4	IPv4	-
2.3.3.3	IPv4	-
2.3.3.1	IPv4	-

5.0 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

A very useful extension.

Nikita Radostev·5 Sept 2021

Great app, really liked it, I advise everyone to try it, thanks to the developers

Anthony Peters·3 Sept 2021

Great extension

SAM SAM·3 Sept 2021

Version History

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Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

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Browse and explore files within this extension package

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Security Alert: Confirmed Malware

PDF Merge Plus

Supported Languages

Extension Info & Metadata

Publisher Contextual Analysis

Chrome Web Store Metadata

About this extension

Analytics & Metrics

User Growth

Rating Count

Average Rating

Static Code Security Analysis

Extracted Data

Code Review Findings Summary Across 2 Versions6

Versions scanned

Files with findings

Extracted Indicators (URLs and IPs)

URLs

Contextual Analysis

User Reviews

Version History

Version-to-Version Code Diff

Code Diff

Extension Files

User Growth

Rating Count

Average Rating

User Reviews