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MITRE ATT&CK - Инструмент Metamorfo
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Metamorfo

Metamorfo is a Latin-American banking trojan operated by a Brazilian cybercrime group that has been active since at least April 2018. The group focuses on targeting banks and cryptocurrency services in Brazil and Mexico.(Citation: Medium Metamorfo Apr 2020)(Citation: ESET Casbaneiro Oct 2019)
ID: S0455
Associated Software: Casbaneiro
Type: MALWARE
Platforms: Windows
Version: 2.0
Created: 26 May 2020
Last Modified: 18 Oct 2022

Associated Software Descriptions
Name Description
Casbaneiro (Citation: ESET Casbaneiro Oct 2019)

Techniques Used
Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

Metamorfo has used HTTP for C2.(Citation: Medium Metamorfo Apr 2020)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1547 .001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Metamorfo has configured persistence to the Registry ket HKCU\Software\Microsoft\Windows\CurrentVersion\Run, Spotify =% APPDATA%\Spotify\Spotify.exe and used .LNK files in the startup folder to achieve persistence.(Citation: Medium Metamorfo Apr 2020)(Citation: FireEye Metamorfo Apr 2018)(Citation: Fortinet Metamorfo Feb 2020)(Citation: ESET Casbaneiro Oct 2019)
Enterprise T1059 .003 Command and Scripting Interpreter: Windows Command Shell

Metamorfo has used cmd.exe /c to execute files.(Citation: Medium Metamorfo Apr 2020)

.005 Command and Scripting Interpreter: Visual Basic

Metamorfo has used VBS code on victims’ systems.(Citation: FireEye Metamorfo Apr 2018)

.007 Command and Scripting Interpreter: JavaScript

Metamorfo includes payloads written in JavaScript.(Citation: Medium Metamorfo Apr 2020)

Enterprise T1565 .002 Data Manipulation: Transmitted Data Manipulation

Metamorfo has a function that can watch the contents of the system clipboard for valid bitcoin addresses, which it then overwrites with the attacker's address.(Citation: Fortinet Metamorfo Feb 2020)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1573 .001 Encrypted Channel: Symmetric Cryptography

Metamorfo has encrypted C2 commands with AES-256.(Citation: ESET Casbaneiro Oct 2019)

.002 Encrypted Channel: Asymmetric Cryptography

Metamorfo's C2 communication has been encrypted using OpenSSL.(Citation: Medium Metamorfo Apr 2020)

Enterprise T1564 .003 Hide Artifacts: Hidden Window

Metamorfo has hidden its GUI using the ShowWindow() WINAPI call.(Citation: Medium Metamorfo Apr 2020)

Enterprise T1574 .002 Hijack Execution Flow: DLL Side-Loading

Metamorfo has side-loaded its malicious DLL file.(Citation: Medium Metamorfo Apr 2020)(Citation: FireEye Metamorfo Apr 2018)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1562 .001 Impair Defenses: Disable or Modify Tools

Metamorfo has a function to kill processes associated with defenses and can prevent certain processes from launching.(Citation: Medium Metamorfo Apr 2020)(Citation: FireEye Metamorfo Apr 2018)

Enterprise T1070 .004 Indicator Removal: File Deletion

Metamorfo has deleted itself from the system after execution.(Citation: Medium Metamorfo Apr 2020)(Citation: Fortinet Metamorfo Feb 2020)
Enterprise T1056 .001 Input Capture: Keylogging

Metamorfo has a command to launch a keylogger and capture keystrokes on the victim’s machine.(Citation: Fortinet Metamorfo Feb 2020)(Citation: ESET Casbaneiro Oct 2019)

.002 Input Capture: GUI Input Capture

Metamorfo has displayed fake forms on top of banking sites to intercept credentials from victims.(Citation: FireEye Metamorfo Apr 2018)

Enterprise T1036 .005 Masquerading: Match Legitimate Name or Location

Metamorfo has disguised an MSI file as the Adobe Acrobat Reader Installer and has masqueraded payloads as OneDrive, WhatsApp, or Spotify, for example.(Citation: Medium Metamorfo Apr 2020)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1027 .002 Obfuscated Files or Information: Software Packing

Metamorfo has used VMProtect to pack and protect files.(Citation: Fortinet Metamorfo Feb 2020)

Enterprise T1566 .001 Phishing: Spearphishing Attachment

Metamorfo has been delivered to victims via emails with malicious HTML attachments.(Citation: FireEye Metamorfo Apr 2018)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1055 .001 Process Injection: Dynamic-link Library Injection

Metamorfo has injected a malicious DLL into the Windows Media Player process (wmplayer.exe).(Citation: Medium Metamorfo Apr 2020)
Enterprise T1518 .001 Software Discovery: Security Software Discovery

Metamorfo collects a list of installed antivirus software from the victim’s system.(Citation: Fortinet Metamorfo Feb 2020)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1553 .002 Subvert Trust Controls: Code Signing

Metamorfo has digitally signed executables using AVAST Software certificates.(Citation: Medium Metamorfo Apr 2020)

Enterprise T1218 .005 System Binary Proxy Execution: Mshta

Metamorfo has used mshta.exe to execute a HTA payload.(Citation: FireEye Metamorfo Apr 2018)

.007 System Binary Proxy Execution: Msiexec

Metamorfo has used MsiExec.exe to automatically execute files.(Citation: Fortinet Metamorfo Feb 2020)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1204 .002 User Execution: Malicious File

Metamorfo requires the user to double-click the executable to run the malicious HTA file or to download a malicious installer.(Citation: FireEye Metamorfo Apr 2018)(Citation: ESET Casbaneiro Oct 2019)

Enterprise T1102 .001 Web Service: Dead Drop Resolver

Metamorfo has used YouTube to store and hide C&C server domains.(Citation: ESET Casbaneiro Oct 2019)
.003 Web Service: One-Way Communication

Metamorfo has downloaded a zip file for execution on the system.(Citation: Medium Metamorfo Apr 2020)(Citation: FireEye Metamorfo Apr 2018)(Citation: Fortinet Metamorfo Feb 2020)

References

  1. Sierra, E., Iglesias, G.. (2018, April 24). Metamorfo Campaigns Targeting Brazilian Users. Retrieved July 30, 2020.
  2. Erlich, C. (2020, April 3). The Avast Abuser: Metamorfo Banking Malware Hides By Abusing Avast Executable. Retrieved May 26, 2020.
  3. ESET Research. (2019, October 3). Casbaneiro: peculiarities of this banking Trojan that affects Brazil and Mexico. Retrieved September 23, 2021.
  4. Zhang, X. (2020, February 4). Another Metamorfo Variant Targeting Customers of Financial Institutions in More Countries. Retrieved July 30, 2020.
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