Monthly Invoice Email SPAM

Also Known As: Emotet and IcedID trojans
Type: Trojan
Distribution: Low
Damage level: Severe

Monthly Invoice virus removal guide

What is Monthly Invoice?

Discovered by malware security researcher, Brad, "Monthly Invoice" is a spam email campaign used to promote Emotet and IcedID trojans. Deceptive emails contain a message stating that users have received an invoice and encourages them to visit the URL included. The opened website immediately triggers download of an MS Office document. These documents stealthily download and install the aforementioned trojans.

Malicious download triggered once a link is clicked:

Monthly Invoice malware

Users are presented with a message stating that an invoice must be paid immediately. To receive the invoice, they are encouraged to visit the URL address provided. Note that, unlike some other spam campaigns, "Monthly Invoice" does not use an identical email - it uses various messages in multiple languages (at time of research, we have discovered English and German emails). Bear in mind, however, that this is a scam. Cyber criminals continually register various domains and email addresses that contain the names of legitimate companies (this makes deceptive emails seem even more legitimate - users who have dealt with such companies are tricked into downloading and opening malicious attachments). As mentioned above, the "Monthly Invoice" campaign uses different messages and, thus, email addresses used, company names, and URLs also differ. In any case, the result is identical - opening malicious attachments results in infection of Emotet and IcedID trojans. These viruses record sensitive information (e.g., logins/passwords, banking information, and so on). Cyber criminals later misuse this information to generate revenue (via money transfers, identity theft, etc.) Therefore, the presence of trojan-type viruses can lead to significant financial loss and serious privacy issues. Unfortunately, determining the presence of trojans manually is virtually impossible - they hide their tracks very well. Despite this, many reputable anti-virus/anti-spyware suites are capable of detecting and removing these viruses. Therefore, if you have opened malicious MS Office attachments, you should immediately perform a full system scan and remove all threats.

Threat Summary:
NameEmotet and IcedID trojans
Threat TypeTrojan, Password stealing virus, Banking malware, Spyware
SymptomsTrojans are designed to stealthily infiltrate victim's computer and remain silent thus no particular symptoms are clearly visible on an infected machine.
Distribution methodsInfected email attachments, malicious online advertisements, social engineering, software cracks.
DamageStolen banking information, passwords, identity theft, victim's computer added to a botnet.

To eliminate Emotet and IcedID trojans our malware researchers recommend scanning your computer with Spyhunter.
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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

There are a number of trojans that share similarities with Emotet and IcedID including TrickBot, Pony, Adwind - these are just some examples from many. Most are distributed using various spam campaigns. Their behavior is also very similar. Virtually all collect extremely sensitive data, however, some trojans are also used to proliferate other viruses, such as ransomware. In this way, trojan-type viruses pose a direct threat to your privacy and Internet browsing safety.

How did Monthly Invoice infect my computer?

"Monthly Invoice" proliferates malicious MS Office documents (Word, Excel, and so on). Once opened, these files encourage users to enable macro commands, otherwise the content will supposedly not be displayed correctly. Once the macros are enabled, attachments immediately execute scripts that stealthily download and install the Emotet and IcedID trojans. Note, however, that malicious scripts are only executed if the attachments are opened using MS Office. If the file is opened using other applications capable of reading such formats, the malware will not be downloaded/installed.

How to avoid installation of malware?

To prevent this situation, be extremely cautious when browsing the Internet. Bear in mind that there are dozens of spam campaigns that proliferate malware. Therefore, think twice before opening email attachments - files that seem irrelevant or have been received from suspicious/unrecognizable email addresses should never be opened. These emails should be deleted immediately, without reading. 2010 and newer versions of MS Office are developed to open downloaded documents in "Protected Mode". Files are opened in read-only format, thereby preventing execution of macro commands. Older versions do not have this feature and thus using them is dangerous. Rogue software is also distributed using fake software updaters and a marketing method called "bundling" (stealth installation of PUPs together with regular software). It is very important to keep installed applications up-to-date. To achieve this, however, use implemented functions or tools provided by the official developer only. The same rule applies to software downloads. We strongly recommend that you avoid using third party downloaders/installers, since developers monetize them by promoting rogue programs. Download software from official sources only, using direct download links. Having a legitimate anti-virus/anti-spyware tool installed and running is also paramount. The key to computer safety is caution. If you have already opened the "Monthly Invoice" attachment, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

Malicious attachment distributed via "Monthly Invoice" spam campaign:

Malicious attachment distributed through Monthly Invoice spam campaign

Examples of email messages distributed using "Monthly Invoice" spam campaign:

From: Christoph Wenzelmann
Subject: Rechnungsanschrift korrigiert 00044499
Din der Anlage sende ich Ihnen den unterzeichneten Vertrag.Die Rechnung wird zur Zahlung vorbereitet und ist unter dem folgenden Link bar.


From: Francine Case
Subject: HRI Monthly Invoice
DHere is the invoice.
Thank you,
Francine Case


From: TaiwanCS
Subject: TaiwanCS Past Due invoice
Attached is your monthly invoice for HRI. Please note this is for your information only. Credit card/ACH payments will automatically be drawn on the 25th. All other payments must be received by the 25th. Thank you and have a great week.


Subject: ABCQP5-78965721675
enclosed the invoice for your reference.
This message is confidential and/or contains legally privileged information. It is intended for the addressees only.


From: khsons
Subject: Rechnungszahlung
Guten Tag,
Din der Anlage sende ich Ihnen den unterzeichneten Vertrag.Die Rechnung wird zur Zahlung vorbereitet und ist unter dem folgenden Link bar.
Mit den besten


Subject: Final Account
Please find your invoice(s) attached
This correspondence and any files transmitted with it are confidential and intended solely for the use of the intended recipient(s) to whom it is addressed.


Subject: Invoice 0879070
Please see the attached invoice.


Subject: Account 64859
Please see attached document.


From: KM James Street 4112
Subject: Payment
Your invoice is available at the link below. Please transfer the payment as soon as possible.
Thank you,
KM James Street 4112
Phone: 281-152-0837 Ext 92 Fax: 281-858-1820


Subject: Invoice 8123038
Here is the invoice.
Office: 503.864.5896 Fax: 503 635-4082

Instant automatic removal of Emotet and IcedID trojans: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Emotet and IcedID trojans. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task, and usually it is best to allow antivirus or anti-malware programs do this  automatically. To remove this malware we recommend using  Spyhunter for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1 Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":


manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

extract and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck the "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate he suspicious program you want to remove, right click your mouse over its name and choose "Delete"

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. You are advised to leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always, it is better to avoid infection early than try to remove malware afterwards. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections we recommend scanning it with Spyhunter for Windows.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Malware activity

Global virus and spyware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Emotet and IcedID trojans QR code
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