TrickBot is a Trojan spyware program written in C++ that first emerged in September 2016 as a possible successor to Dyre. TrickBot was developed and initially used by Wizard Spider for targeting banking sites in North America, Australia, and throughout Europe; it has since been used against all sectors worldwide as part of "big game hunting" ransomware campaigns.^[1]^[2]^[3]^[4]

ID: S0266

ⓘ

Associated Software: Totbrick, TSPY_TRICKLOAD

ⓘ

Type: MALWARE

ⓘ

Platforms: Windows

Contributors: Daniyal Naeem, BT Security; Cybereason Nocturnus, @nocturnus; Omkar Gudhate; FS-ISAC

Version: 2.0

Created: 17 October 2018

Last Modified: 01 October 2021

Associated Software Descriptions

Name	Description
Totbrick	^[5] ^[6]
TSPY_TRICKLOAD	^[5]

Techniques Used

Domain	ID		Name	Use
Enterprise	T1087	.001	Account Discovery: Local Account	TrickBot collects the users of the system.^[1]^[7]
		.003	Account Discovery: Email Account	TrickBot collects email addresses from Outlook.^[7]
Enterprise	T1071	.001	Application Layer Protocol: Web Protocols	TrickBot uses HTTPS to communicate with its C2 servers, to get malware updates, modules that perform most of the malware logic and various configuration files.^[1]^[8]
Enterprise	T1547	.001	Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder	TrickBot establishes persistence in the Startup folder.^[9]
Enterprise	T1185		Browser Session Hijacking	TrickBot uses web injects and browser redirection to trick the user into providing their login credentials on a fake or modified web page.^[2]^[3]^[6]^[7]
Enterprise	T1110	.004	Brute Force: Credential Stuffing	TrickBot uses brute-force attack against RDP with rdpscanDll module.^[9]^[10]
Enterprise	T1059	.001	Command and Scripting Interpreter: PowerShell	TrickBot has been known to use PowerShell to download new payloads, open documents, and upload data to command and control servers. ^[11]
		.003	Command and Scripting Interpreter: Windows Command Shell	TrickBot has used macros in Excel documents to download and deploy the malware on the user’s machine.^[12]
Enterprise	T1543	.003	Create or Modify System Process: Windows Service	TrickBot establishes persistence by creating an autostart service that allows it to run whenever the machine boots.^[7]
Enterprise	T1555	.003	Credentials from Password Stores: Credentials from Web Browsers	TrickBot can obtain passwords stored in files from web browsers such as Chrome, Firefox, Internet Explorer, and Microsoft Edge, sometimes using esentutl.^[7]^[8]^[11]
		.005	Credentials from Password Stores: Password Managers	TrickBot can steal passwords from the KeePass open source password manager.^[8]
Enterprise	T1132	.001	Data Encoding: Standard Encoding	TrickBot can Base64-encode C2 commands.^[8]
Enterprise	T1005		Data from Local System	TrickBot collects local files and information from the victim’s local machine.^[1]
Enterprise	T1140		Deobfuscate/Decode Files or Information	TrickBot decodes the configuration data and modules.^[2]^[8]^[13]
Enterprise	T1482		Domain Trust Discovery	TrickBot can gather information about domain trusts by utilizing Nltest.^[14]^[8]
Enterprise	T1573	.001	Encrypted Channel: Symmetric Cryptography	TrickBot uses a custom crypter leveraging Microsoft’s CryptoAPI to encrypt C2 traffic.^[2]Newer versions of TrickBot have been known to use `bcrypt` to encrypt and digitally sign responses to their C2 server. ^[15]
Enterprise	T1041		Exfiltration Over C2 Channel	TrickBot can send information about the compromised host and upload data to a hardcoded C2 server.^[8]^[11]
Enterprise	T1210		Exploitation of Remote Services	TrickBot utilizes EternalBlue and EternalRomance exploits for lateral movement in the modules wormwinDll, wormDll, mwormDll, nwormDll, tabDll.^[9]
Enterprise	T1008		Fallback Channels	TrickBot can use secondary C2 servers for communication after establishing connectivity and relaying victim information to primary C2 servers.^[8]
Enterprise	T1083		File and Directory Discovery	TrickBot searches the system for all of the following file extensions: .avi, .mov, .mkv, .mpeg, .mpeg4, .mp4, .mp3, .wav, .ogg, .jpeg, .jpg, .png, .bmp, .gif, .tiff, .ico, .xlsx, and .zip. It can also obtain browsing history, cookies, and plug-in information.^[1]^[7]
Enterprise	T1495		Firmware Corruption	TrickBot module "Trickboot" can write or erase the UEFI/BIOS firmware of a compromised device.^[16]
Enterprise	T1562	.001	Impair Defenses: Disable or Modify Tools	TrickBot can disable Windows Defender.^[7]
Enterprise	T1105		Ingress Tool Transfer	TrickBot downloads several additional files and saves them to the victim's machine.^[5]^[11]
Enterprise	T1056	.004	Input Capture: Credential API Hooking	TrickBot has the ability to capture RDP credentials by capturing the `CredEnumerateA` API^[12]
Enterprise	T1559	.001	Inter-Process Communication: Component Object Model	TrickBot used COM to setup scheduled task for persistence.^[9]
Enterprise	T1036		Masquerading	The TrickBot downloader has used an icon to appear as a Microsoft Word document.^[8]
Enterprise	T1112		Modify Registry	TrickBot can modify registry entries.^[7]
Enterprise	T1106		Native API	TrickBot uses the Windows API call, CreateProcessW(), to manage execution flow.^[1] TrickBot has also used `Nt*` API functions to perform Process Injection.^[13]
Enterprise	T1135		Network Share Discovery	TrickBot module shareDll/mshareDll discovers network shares via the WNetOpenEnumA API.^[9]^[10]
Enterprise	T1571		Non-Standard Port	Some TrickBot samples have used HTTP over ports 447 and 8082 for C2.^[1]^[2]^[5] Newer versions of TrickBot have been known to use a custom communication protocol which sends the data unencrypted over port 443. ^[11]
Enterprise	T1027		Obfuscated Files or Information	TrickBot uses non-descriptive names to hide functionality and uses an AES CBC (256 bits) encryption algorithm for its loader and configuration files.^[1]
		.002	Software Packing	TrickBot leverages a custom packer to obfuscate its functionality.^[1]
Enterprise	T1069		Permission Groups Discovery	TrickBot can identify the groups the user on a compromised host belongs to.^[8]
Enterprise	T1566	.001	Phishing: Spearphishing Attachment	TrickBot has used an email with an Excel sheet containing a malicious macro to deploy the malware^[12]
		.002	Phishing: Spearphishing Link	TrickBot has been delivered via malicious links in phishing e-mails.^[8]
Enterprise	T1542	.003	Pre-OS Boot: Bootkit	TrickBot can implant malicious code into a compromised device's firmware.^[16]
Enterprise	T1057		Process Discovery	TrickBot uses module networkDll for process list discovery.^[9]^[10]
Enterprise	T1055		Process Injection	TrickBot has used `Nt*` Native API functions to inject code into legitimate processes such as `wermgr.exe`.^[13]
		.012	Process Hollowing	TrickBot injects into the svchost.exe process.^[1]^[5]^[6]^[8]
Enterprise	T1090	.002	Proxy: External Proxy	TrickBot has been known to reach a command and control server via one of nine proxy IP addresses. ^[15] ^[11]
Enterprise	T1219		Remote Access Software	TrickBot uses vncDll module to remote control the victim machine.^[9]^[10]
Enterprise	T1021	.005	Remote Services: VNC	TrickBot has used a VNC module to monitor the victim and collect information to pivot to valuable systems on the network ^[17]^[11]
Enterprise	T1018		Remote System Discovery	TrickBot can enumerate computers and network devices.^[8]
Enterprise	T1053	.005	Scheduled Task/Job: Scheduled Task	TrickBot creates a scheduled task on the system that provides persistence.^[1]^[5]^[6]
Enterprise	T1553	.002	Subvert Trust Controls: Code Signing	TrickBot has come with a signed downloader component.^[8]
Enterprise	T1082		System Information Discovery	TrickBot gathers the OS version, machine name, CPU type, amount of RAM available, and UEFI/BIOS firmware information from the victim’s machine.^[1]^[2]^[8]^[16]
Enterprise	T1016		System Network Configuration Discovery	TrickBot obtains the IP address, location, and other relevant network information from the victim’s machine.^[1]^[7]^[8]
Enterprise	T1033		System Owner/User Discovery	TrickBot can identify the user and groups the user belongs to on a compromised host.^[8]
Enterprise	T1007		System Service Discovery	TrickBot collects a list of install programs and services on the system’s machine.^[1]
Enterprise	T1552	.001	Unsecured Credentials: Credentials In Files	TrickBot can obtain passwords stored in files from several applications such as Outlook, Filezilla, OpenSSH, OpenVPN and WinSCP.^[7]^[8] Additionally, it searches for the ".vnc.lnk" affix to steal VNC credentials.^[12]
		.002	Unsecured Credentials: Credentials in Registry	TrickBot has retrieved PuTTY credentials by querying the `Software\SimonTatham\Putty\Sessions` registry key ^[12]
Enterprise	T1204	.002	User Execution: Malicious File	TrickBot has attempted to get users to launch malicious documents to deliver its payload. ^[12]^[8]
Enterprise	T1497	.003	Virtualization/Sandbox Evasion: Time Based Evasion	TrickBot has used `printf` and file I/O loops to delay process execution as part of API hammering.^[13]

Groups That Use This Software

ID	Name	References
G0092	TA505	^[18]^[19]
G0102	Wizard Spider	^[20]^[21]^[22]^[4]

TrickBot

Associated Software Descriptions

Enterprise Layer

Techniques Used

Groups That Use This Software

References