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PDF_MALPHISH.AUSJEQYF

July 18, 2018
 Analysis by: Michael Jhon Ofiaza
 ALIASES:

PDF/Phishing.gen.n (Nai) ; PDF/Phishing.A.Gen trojan (Nod32) ;

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • 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:

22,525 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

26 Jun 2018

Payload:

Connects to URLs/IPs, Downloads files

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.

Other Details

This Trojan does the following:

  • This Trojan presents the user a fake message tricking them to click on the following link:
    • https://storage.{BLOCKED}apis.com/frontline65055/frontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidentialfrontlineblessingforeverconfidential/8/index.html
    However, as of this writing, the said site is inaccessible.

NOTES:

This Trojan shows the following fake message in the PDF, tricking the users to click on the link:

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.384.04

FIRST VSAPI PATTERN DATE:

17 Jul 2018

VSAPI OPR PATTERN File:

14.385.00

VSAPI OPR PATTERN Date:

18 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

Close all opened browser windows

Step 3

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