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Avoid malware distributed via "Baldur" scam emails

Also Known As: Agent Tesla RAT
Type: Trojan
Damage level: Severe

What is "Baldur email virus"?

"Baldur email virus" refers to a malware-spreading spam campaign. The scam emails distributed through this campaign are presented as purchase orders. The "Baldur" spam campaign aims to infect recipients' devices with the Agent Tesla RAT (Remote Access Trojan).

Baldur malware-spreading email spam campaign

"Baldur email virus" overview

The "Baldur" scam emails request recipients to provide a price quotation for the attached purchase order. The letters have two attachments; one is a PDF document containing the fake company's logo, the other - a 7z file that supposedly has the order details archived inside it. Instead, when the latter is opened and the malicious executable run - Agent Tesla's download/installation is triggered.

Agent Tesla malware functionalities

RAT-type malware is designed to allow remote access and control over infected machines. This applies to Agent Tesla as well. This trojan can perform various functions/commands on devices, yet its primary functionality is data theft.

The RAT has keylogging (keystroke recording) abilities, and it can also extract information from various browsers, download manners, as well as email, messaging, VPN, and FTP clients. Targeted data includes: personally identifiable information, online account usernames and passwords, banking account details, credit card numbers, and so on.

In summary, Agent Tesla infections can lead to severe privacy issues, financial losses, and identity theft. Therefore, it is crucial to use an anti-virus to remove the malware immediately.

Threat Summary:
Name Agent Tesla RAT
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Hoax Scam emails are disguised as purchase order inquiries.
Attachment(s) MARCA-baldur Order.pdf.7z and 20210906123636.pdf (filenames may vary)
Detection Names (7z archive) Avast (Win32:PWSX-gen [Trj]), Combo Cleaner (Trojan.GenericKD.37559872), ESET-NOD32 (A Variant Of MSIL/Injector.VSA), Kaspersky (HEUR:Trojan-PSW.MSIL.Agensla.gen), Microsoft (Trojan:MSIL/AgentTesla.KGO!MTB), Full List Of Detections (VirusTotal)
Symptoms Trojans are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Payload Agent Trojan
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen passwords and banking information, identity theft, the victim's computer added to a botnet.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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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 read more.

Spam campaigns in general

"Interhydro Email Virus", "US$51,000.00 Had Been Transferred Into Your Account", "Taxve Inc. Email Virus", "The Best Price List", and "Adobe Acrobat Email Virus" are some examples of malware-proliferating spam campaigns.

Aside from the distribution of malicious software, deceptive emails are also used to facilitate phishing and various other scams. Due to how widespread spam mail is, it is strongly advised to exercise caution with incoming emails and messages.

How did "Baldur email virus" infect my computer?

Systems are infected via malicious files attached to or linked inside spam emails. These files can be in various formats, e.g., archives (RAR, ZIP, 7z, etc.), executables (.exe, .run, etc.), Microsoft Office and PDF documents, JavaScript, and so on. When the files are opened - the infection process is initiated.

For example, Microsoft Office documents cause infections by executing malicious macro commands. This occurs the moment a document is opened in Microsoft Office versions released prior to 2010. Later versions have "Protected View" mode that prevents it; instead, users can manually enable editing/content (i.e., macros commands).

How to avoid installation of malware?

Dubious and irrelevant emails must not be opened, especially any attachments or links found in them. It is also recommended to use Microsoft Office versions released after 2010.

Untrustworthy download channels (e.g., Peer-to-Peer sharing networks, unofficial and freeware sites, etc.), illegal activation tools ("cracks"), and fake updates are used to spread malware as well. Therefore, it is advised to download only from official/verified sources and activate/update programs with functions provided by genuine developers.

It is paramount to have a dependable anti-virus installed and kept up-to-date. This software has to be used to run regular system scans and to remove threats. If you've already opened "Baldur email virus" attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "Baldur" scam email letter:

Subject: First Order from Baldur with (BUSINESS CARD)

 

Hello,

 

The same business card that I shared in the attachment will be made with the new logo of Baldur which is our new company name, I shared in the attachment.

 

Could you please send the draft for price quotation for attached Order?

 

Thanks in advance

 

Best regards/ Best Regards/ Saludos Cordiales
 
Hande Esen
Purchasing Responsible/Purchasing Responsible/Responsable de Compras

 

BALDUR SUSPENSION PRODUCTION IND. VE TİC. Inc.
Sekerpinar Mah. Tepe Sok. No: 1 Cayirova/Kocaeli
Tel : +90 262 658 12 41-42-43-44

Fax : +90 262 658 12 15

Email: hande.erkan@baldur.com.es 

 

Antes de imprimir este e-mail piense bien si es necesario hacerlo: El medioambiente es cosa de todos.
La información contenida en este mensaje es confidencial y está dirigida exclusivamente a su destinatario, estando prohibida su divulgación parcial o total. Si usted no es el destinatario designado en este mensaje, le informamos de que su lectura, copia y uso le están prohibidos. En caso de news recibido este mensaje por error, le rogamos que lo comunique lo antes posible al remitente y proceda a su destrucción total.
This message contains confidential information exclusively addressed to the designated recipient, and any disclosure of this message, whether partial or total, is prohibited. If you are not the intended recipient of this message, we inform you that the reading, copying and use of this message is prohibited. In such case, please notify the sender immediately and proceed to destroy the message entirely.

Appearance of the "Baldur" scam email (GIF):

Baldur scam email appearance (GIF)

Screenshot of the PDF attachment distributed via "Baldur" spam campaign ("20210906123636.pdf"):

One of the attachment distributed through Baldur spam campaign (20210906123636.pdf)

Screenshot of VirusTotal detections of the malicious attachment distributed via "Baldur" spam campaign ("MARCA-baldur Order.pdf.7z"):

Baldur email virus-attachment detections (MARCA-baldur Order.pdf.7z)

An example of Baldur-themed spam email distributing an HTML file designed to steal user input:

Baldur-themed spam email distributing a malicious HTML file

Text presented within:

Subject: Payment Confirmation

 

Hello

Payment has been made as discussed this morning. Kindly proceed as advised.
See attached proof of payment.

Best Regards/ Saludos Cordiales
 
Hande Esen
Purchasing Responsible/Purchasing Responsible/Responsable de Compras

BALDUR SUSPENSION PRODUCTION IND. VE TİC. Inc.
Sekerpinar Mah. Tepe Sok. No: 1 Cayirova/Kocaeli
Tel : +90 262 658 12 41-42-43-44

Fax : +90 262 658 12 15

Email: hande.erkan@baldur.com.es

Screenshot of the promoted HTML file:

Malicious HTML file distributed via Baldur-themed spam emails

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer 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:
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Quick menu:

How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Combo Cleaner Antivirus 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 1Download 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 autoruns.zip and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "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 the suspicious program you wish 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, be sure to 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. If you do not have these skills, leave malware removal to antivirus and anti-malware programs.

These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. 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 Combo Cleaner Antivirus for Windows.

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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 pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

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Malware activity

Global malware activity level today:

Medium threat activity

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

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