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: Spammed via email

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

This is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size: 109,129 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 20 Apr 2017

Arrival Details

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

Other Details

This is the Trend Micro detection for:

  • PDF files that presents the user a fake message tricking them to click embedded link.

NOTES:

Upon opening the document, the users are presented with a fake Drop Box message tricking them to click on the following malicious link:

  • https://bit.ly/{BLOCKED}F98h

Once this compromised site is visited, the user may be redirected to the following malicious site:

  • https://{BLOCKED}moh.gq/CLqR7-signin-dropb/JzKyepeO

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.

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 13.352.04
FIRST VSAPI PATTERN DATE: 20 Apr 2017
VSAPI OPR PATTERN File: 13.353.00
VSAPI OPR PATTERN Date: 21 Apr 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.AUSVJ. 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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