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PDF_MALPHISH.PDL

June 01, 2017
 Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Via email


This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

  TECHNICAL DETAILS

File Size:

176,601 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

31 May 2017

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

NOTES:

This is the Trend Micro detection for PDF files that contains a malicious link.

Once the link on the document file is opened, a browser will be opened and redirected to the following website:

  • https://www.{BLOCKED}tnet.cf/make/dropbox-Inc.htm

The user will be again redirected to the following website:

  • https://www.{BLOCKED}eanttactical.website/free/Inc/

The said site contains a login form which requires the user to enter an username/email and password which may then lead to stolen information. The phishing site request to enter email and passwords for the following email service providers:

  • Gmail
  • Yahoo
  • Outlook
  • AOL
  • others

After logging in on the fake form, the user will be redirected to a normal PDF file:

  • https://www.{BLOCKED}wc.com/us/en/private-company-services/publications/assets/pwc-wealth-tax-management-guide-2017.pdf

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.440.05

FIRST VSAPI PATTERN DATE:

31 May 2017

VSAPI OPR PATTERN File:

13.441.00

VSAPI OPR PATTERN Date:

01 Jun 2017

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

Scan your computer with your Trend Micro product to delete files detected as PDF_MALPHISH.PDL. 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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