Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Once users access any of the monitored sites, it starts logging keystrokes. It attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size: 3,974,140 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 21 Oct 2016
Payload: Steals information

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This spyware injects codes into the following process(es):

  • Internet Explorer
  • Google Chrome
  • Firefox
  • Aplicativo Bradesco
  • Aplicativo Ita
  • explorer.exe

Information Theft

Once users access any of the monitored sites, it starts logging keystrokes.

It attempts to steal information from the following banks and/or other financial institutions:

  • Banco Bradesco
  • Banco Santander Brasil
  • Banco do Brasil
  • Sicredi
  • Caixa

Other Details

This spyware connects to the following website to send and receive information:

  • http://{BLOCKED}vam.endofinternet.net
  • http://www.{BLOCKED}ellosartisticos.com/templates/beez/ze1/notify.php

It does the following:

  • It monitors the user's banking activies by checking the browser for the following strings which are related to banking sites:
    • Banco Bradesco
    • Banco Santander Brasil
    • Banco do Brasil
    • Sicredi
    • aapf/login.jsp
    • aapj.bb.com
    • aapj/logincor
    • aapj/loginmpe
    • aapj/loginpfe
    • aplicativo ita
    • aplicativobradescover
    • banco bradesco
    • banco do brasil
    • banco santander brasil
    • bancobrasil
    • bb.com
    • bradesco.com
    • bradesconetempresa
    • caixa.gov.br
    • caixa.gov.br/SIIBC/index.processa
    • identificacao.jsf
    • iniciasessao.asp
    • iniciasessaolegado.asp
    • internet banking
    • internetbankingcaixa
    • santander.com.br
    • santanderempresarial.com.br
    • santandernet.com.br
    • sicredi
    • sicreditotal
    • siwinCtrl
    • verificando solu
    • www.santandernetibe.com.br
  • It searches for the process "itauaplicativo.exe" in the list of currently running process. Once found, it will attempt to inject codes to this process.
  • It requires the following component file to perform its intended routines:
    • cryptspUn.dll

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.862.02
FIRST VSAPI PATTERN DATE: 27 Oct 2016
VSAPI OPR PATTERN File: 12.863.00
VSAPI OPR PATTERN Date: 28 Oct 2016

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BANKER.MBRO. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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