What kind of malspam is "Adobe Acrobat - Secure Document Email Virus"

What kind of email is "Adobe Acrobat - Secure Document Email Virus"?

Our team inspected this email and determined it is malspam designed to deliver malware. The message is disguised as an Adobe Acrobat Sign notification to trick recipients into clicking a button that leads to a fake website. That site delivers a trojanized installer giving attackers remote access to the victim's computer. This email should be ignored and deleted.

"Adobe Acrobat - Secure Document Email Virus" overview

The email poses as an Adobe Acrobat Sign notification, claiming that a secure document has been sent to the recipient for review. The message states that the sender is considering the recipient's organization for an upcoming contract project and wants to discuss a possible collaboration. Adobe has no connection to this email whatsoever.

The email adds urgency by warning that the document will expire in 48 hours. It prompts the recipient to click a button labeled "Review and sign Document" to proceed.

Clicking that button redirects the user to a fraudulent website impersonating Adobe Reader. The page claims the visitor's Adobe Reader version has expired and needs an update. It automatically begins downloading a file named ScreenConnect.ClientSetup.msi, presented as the required update installer.

That file is not a legitimate Adobe update. It is a trojanized installer for ScreenConnect, a legitimate remote desktop and IT management tool made by ConnectWise. Attackers embed their own server configuration into the installer so that once it runs, it silently connects back to infrastructure they control.

With that connection established, the attackers gain a full remote access trojan-style foothold on the victim's machine. They can view and copy files, steal stored passwords and banking credentials, deploy additional malware, or monitor the user without any visible indication. If the file has already been run, scanning the system with a trusted antivirus tool immediately is strongly advised.

Malspam campaign examples

This email is a scam designed to look like a legitimate Adobe Acrobat Sign notification. The button inside leads to a fake Adobe website that delivers a trojanized remote access tool. Anyone who ran the downloaded installer should treat their computer as compromised and scan it right away.

More examples of malware-spreading emails are DocuSign - Legal Department Document, FedEx e-Order Notification, and Wire Transfer To Your Diocesan Account. Spam mail is used to deliver all kinds of malware, from information stealers and banking trojans to ransomware and remote access tools.

How do spam campaigns infect computers?

Cybercriminals use spam emails to deliver malware in one of two ways: through file attachments or through links. Attachments may look like ordinary documents, PDFs, archives, or scripts, but opening them can trigger a malware installation. In some cases additional steps are needed first, such as enabling macro commands in an Office file.

Links in spam emails lead to malicious or compromised pages that either download a file automatically or present a fake prompt to do so. In this campaign, recipients who click the button land on a fake Adobe update page that immediately starts downloading a trojanized MSI installer. The page is designed to look convincing enough that the victim runs the file without suspecting anything.

How to avoid installation of malware?

Be cautious with unexpected emails, even ones that appear to come from well-known companies. Do not click links or open attachments in messages from unknown or untrusted senders. Cybercriminals are skilled at copying the appearance of legitimate services.

Download software only from official developer websites or verified app stores. Avoid pirated software, cracks, and key generators, as these are frequently used to distribute malware. Keep your operating system and all applications updated to reduce exposure to known security flaws.

Use a reputable antivirus program and run regular scans. If you have already run the file promoted through this spam campaign, we recommend scanning your system with Combo Cleaner Antivirus for Windows to automatically detect and remove any installed threats.

Text presented in the "Adobe Acrobat - Secure Document Email Virus" email letter:

Subject: E-docsignatureScreenClientSetupServer.programDocumentReview8291

Adobe Acrobat Sign

You have received a secure document

Hello ******** ,We are currently considering your organization for an upcoming contract project due to the quality of services you provide. We would appreciate the opportunity to discuss a possible collaboration and review the project requirements with your team .
[Review and sign Document]

Thank you!

Expiration Pending. This document will expire in 48 hours

Do not share this email
This email contains a secured link. Please do not share this email link or access code with others.

About Adobe Acrobat Sign
Sign documents electronically in just minutes. It is safe, secure and legally binding whether you are in an office, at home, on the go — or across the globe.

Questions about the Document?
If you need to modify the document or have questions about the details, please reach out to the sender directly.

Screenshot of the malicious website promoted by this spam campaign:

Instant automatic malware removal:

Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:

By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by RCS LT, the parent company of PCRisk.com.

Quick menu:

• What is Adobe Acrobat - Secure Document malspam campaign?
• Types of malicious emails.
• How to spot a malicious email?
• What to do if you fell for an email scam?

Types of malicious emails:

Phishing Emails

Most commonly, cybercriminals use deceptive emails to trick Internet users into giving away their sensitive private information, for example, login information for various online services, email accounts, or online banking information.

Such attacks are called phishing. In a phishing attack, cybercriminals usually send an email message with some popular service logo (for example, Microsoft, DHL, Amazon, Netflix), create urgency (wrong shipping address, expired password, etc.), and place a link which they hope their potential victims will click on.

After clicking the link presented in such email message, victims are redirected to a fake website that looks identical or extremely similar to the original one. Victims are then asked to enter their password, credit card details, or some other information that gets stolen by cybercriminals.

Emails with Malicious Attachments

Another popular attack vector is email spam with malicious attachments that infect users' computers with malware. Malicious attachments usually carry trojans that are capable of stealing passwords, banking information, and other sensitive information.

In such attacks, cybercriminals' main goal is to trick their potential victims into opening an infected email attachment. To achieve this goal, email messages usually talk about recently received invoices, faxes, or voice messages.

If a potential victim falls for the lure and opens the attachment, their computers get infected, and cybercriminals can collect a lot of sensitive information.

While it's a more complicated method to steal personal information (spam filters and antivirus programs usually detect such attempts), if successful, cybercriminals can get a much wider array of data and can collect information for a long period of time.

Sextortion Emails

This is a type of phishing. In this case, users receive an email claiming that a cybercriminal could access the webcam of the potential victim and has a video recording of one's masturbation.

To get rid of the video, victims are asked to pay a ransom (usually using Bitcoin or another cryptocurrency). Nevertheless, all of these claims are false - users who receive such emails should ignore and delete them.

How to spot a malicious email?

While cyber criminals try to make their lure emails look trustworthy, here are some things that you should look for when trying to spot a phishing email:

• Check the sender's ("from") email address: Hover your mouse over the "from" address and check if it's legitimate. For example, if you received an email from Microsoft, be sure to check if the email address is @microsoft.com and not something suspicious like @m1crosoft.com, @microsfot.com, @account-security-noreply.com, etc.
• Check for generic greetings: If the greeting in the email is "Dear user", "Dear @youremail.com", "Dear valued customer", this should raise suspiciousness. Most commonly, companies call you by your name. Lack of this information could signal a phishing attempt.
• Check the links in the email: Hover your mouse over the link presented in the email, if the link that appears seems suspicious, don't click it. For example, if you received an email from Microsoft and the link in the email shows that it will go to firebasestorage.googleapis.com/v0... you shouldn't trust it. It's best not to click any links in the emails but to visit the company website that sent you the email in the first place.
• Don't blindly trust email attachments: Most commonly, legitimate companies will ask you to log in to their website and to view any documents there; if you received an email with an attachment, it's a good idea to scan it with an antivirus application. Infected email attachments are a common attack vector used by cybercriminals.

To minimise the risk of opening phishing and malicious emails we recommend using Combo Cleaner Antivirus for Windows. 

Example of a spam email:

What to do if you fell for an email scam?

• If you clicked on a link in a phishing email and entered your password - be sure to change your password as soon as possible. Usually, cybercriminals collect stolen credentials and then sell them to other groups that use them for malicious purposes. If you change your password in a timely manner, there's a chance that criminals won't have enough time to do any damage.
• If you entered your credit card information - contact your bank as soon as possible and explain the situation. There's a good chance that you will need to cancel your compromised credit card and get a new one.
• If you see any signs of identity theft - you should immediately contact the Federal Trade Commission. This institution will collect information about your situation and create a personal recovery plan.
• If you opened a malicious attachment - your computer is probably infected, you should scan it with a reputable antivirus application. For this purpose, we recommend using  Combo Cleaner Antivirus for Windows.
• Help other Internet users - report phishing emails to Anti-Phishing Working Group, FBI’s Internet Crime Complaint Center, National Fraud Information Center and U.S. Department of Justice.

Frequently Asked Questions (FAQ)

Why did I receive this email?

Spam campaigns are sent to large numbers of people at once and are not personally targeted. Email addresses used in these campaigns are typically gathered from data breaches, leaked databases, or similar sources. The same message reaches thousands of recipients in the hope that at least a few will interact with it.

I have provided my personal information when tricked by this email, what should I do?

If you entered any login credentials, change those passwords immediately. If you provided financial or other sensitive personal information, contact your bank or the relevant authority as soon as possible to limit potential damage.

I have downloaded and opened a file promoted by a spam email, is my computer infected?

Whether your computer is infected depends on your actions after the download. Visiting the site and downloading the MSI file alone does not trigger the infection. However, running the installer would execute the malicious configuration and very likely result in the attacker gaining remote access to your machine.

I have read the email but did not open the attachment, is my computer infected?

No. Simply reading the email does not trigger any infection. The malware is only installed if the user clicks the link, visits the fake website, downloads the file, and then runs it. None of those steps happen automatically from opening the email.

Will Combo Cleaner remove malware infections that were present in email attachment?

Yes, Combo Cleaner can detect and remove most known malware, including trojanized remote access tools. Running a full system scan is recommended, as remote access software can download and install additional threats that may conceal themselves elsewhere in the system.