Analysis by: Kiyoshi Obuchi
 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

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

  TECHNICAL DETAILS

File Size: 104,259 bytes
File Type: PDF
Initial Samples Received Date: 04 Jul 2018
Payload: Displays message/message boxes, Steals information

Arrival Details

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

NOTES:

This Trojan presents users with a fake message tricking them to click on the link https://www.{BLOCKED}xdental.com/wp-admin/maints/db.php?rand=13InboxLightaspxn.1774256418&fid.4.1252899642&fid=1&fav.1&rand.13InboxLight.aspxn.1774256418&fid.1252899642&fid.1&fav.1&email=&.rand=13InboxLight.aspx?n=1774256418&fid=4#n=1252899642&fid=1&fav=1.

It then shows them the following to trick users into providing their email address. After, it redirects to the URL https://www.{BLOCKED}xdental.com/wp-admin/maints/db2.php.

Once credentials are provided, it shows the following to trick users into providing their passwords then redirects to the URL https://www.{BLOCKED}xdental.com/wp-admin/maints/veproof.php:

It then will shows the following to trick users into adding their mobile numbers and recover email:

It steals the following information:

  • Email Addresses
  • Passwords
  • Mobile Numbers

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 14.358.08
FIRST VSAPI PATTERN DATE: 04 Jul 2018
VSAPI OPR PATTERN File: 14.359.00
VSAPI OPR PATTERN Date: 05 Jul 2018

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

Identify and terminate files detected as PDF_PHISH.AUSEPB

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as PDF_PHISH.AUSEPB. 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 the following Trend Micro Support pages for more information:


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