Home Malware Programs Trojans FormBook

FormBook

Posted: October 4, 2017

Threat Metric

Threat Level: 8/10
Infected PCs: 66
First Seen: October 4, 2017
Last Seen: February 17, 2022
OS(es) Affected: Windows


FormBook is a threatening application, which works silently to exfiltrate login credentials from the compromised computer. The threat is often being spread via the QuantLoader Trojan downloader, but the attackers who use it also might opt to use alternative propagation techniques that don't rely on 3rd-party malware. The most worrying fact about FormBook is that is being sold freely on underground hacking forums, and just about anyone can get their hands on it. Apart from the malware builder, buyers also will receive support, instructions, and assistance with propagation by the authors. This means that FormBook is likely to be very widespread, especially considering that it has been on sale for the past six months.

Having FormBook on your computer means that an ill-minded user might get access to information such as e-mail login, social media logins, conversations, bank account details, usernames and passwords. This is a major security risk, and removing the FormBook malware will not be enough to resolve the issue. You also will need to make sure to change all of your passwords, as well as to contact your bank to receive assistance with securing your account and credit card.

Since FormBook may be purchased and spread by anyone, you should expect to find it in all sorts of dubious content – fraudulent e-mail attachments, pirated games, pirated media, fake software, fake updates, etc. The best you can do to ensure that you will not have your credentials collected by FormBook is to use a credible anti-malware protection that will stop the threat before it manages to cause any harm.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



file.exe File name: file.exe
Size: 454.65 KB (454656 bytes)
MD5: 08d6ddcbcb89d0bc3545467ed8ac71f0
Detection count: 93
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 13, 2017
c:\Users\<username>\appdata\roaming\microsoft\windows\start menu\programs\file.exe File name: file.exe
Size: 390.65 KB (390656 bytes)
MD5: 027749b3b4fbd2fc44dbe50e65cf3765
Detection count: 90
File type: Executable File
Mime Type: unknown/exe
Path: c:\Users\<username>\appdata\roaming\microsoft\windows\start menu\programs
Group: Malware file
Last Updated: May 4, 2018
file.exe File name: file.exe
Size: 495.61 KB (495616 bytes)
MD5: 423e35ab50cd115760cae05cfdedbe60
Detection count: 71
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 799.61 KB (799612 bytes)
MD5: d6c41a1f2e15889849747f0aa1772a20
Detection count: 44
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 13, 2017
file.exe File name: file.exe
Size: 479.23 KB (479232 bytes)
MD5: e2e47c3ab5643fe179baf5241e09dc40
Detection count: 35
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 229.37 KB (229376 bytes)
MD5: 49a8d93dd6280f7197b094c359d785cb
Detection count: 22
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: November 5, 2017
file.exe File name: file.exe
Size: 168.96 KB (168960 bytes)
MD5: 0692d69cd44ac2badbbfd0e98176f23a
Detection count: 13
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 1.14 KB (1141 bytes)
MD5: 01a43ab570cfe7f8a271ea3e76cf8ef1
Detection count: 13
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 458.75 KB (458752 bytes)
MD5: 2055df8d5e156dd222ea5307baaa3329
Detection count: 13
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 458.75 KB (458752 bytes)
MD5: 56edae07a8c9f4fc73346af43170e6dd
Detection count: 13
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 466.94 KB (466944 bytes)
MD5: 869356c3b8fa73dd2dc5ee5ee584d7e3
Detection count: 11
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 24, 2017
file.exe File name: file.exe
Size: 502.96 KB (502960 bytes)
MD5: 0fac516e1a47d43be56599c17ac1aa0a
Detection count: 10
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 24, 2017
%PROGRAMFILES(x86)%\Ixdfxwh\fjlhjtzhbjlq.exe\file.exe File name: file.exe
Size: 1.03 MB (1032192 bytes)
MD5: ec7b972d6233995bf76d91030e71c111
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES(x86)%\Ixdfxwh\fjlhjtzhbjlq.exe
Group: Malware file
Last Updated: June 26, 2020

Registry Modifications

The following newly produced Registry Values are:

Regexp file mask%APPDATA%\CHKDSKd.exe
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