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PDF_MALPHISH.YYAK

October 24, 2016
 Analysis by: Pearl Charlaine Espejo
 ALIASES:

PDF/Phishing.Agent.AGK (ESET-NOD32); Phishing.PDF.FEH (Zoner)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

111,070 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

20 Oct 2016

Arrival Details

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

It 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 connects to the following possibly malicious URL:

  • https://fsb4.{BLOCKED}e.me/b2382f74a093699d/Quotation_Request.zip?download_token=cafb6b9ef010a14938c1b4c02d4c0dc1a000d6cef2424d2734f4d50d580b3777

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.8

FIRST VSAPI PATTERN FILE:

12.848.06

FIRST VSAPI PATTERN DATE:

20 Oct 2016

VSAPI OPR PATTERN File:

12.849.00

VSAPI OPR PATTERN Date:

21 Oct 2016

NOTES:

Trend customers:

    Keep your pattern and scan engine files updated. Trend Micro antivirus software can clean or remove most types of computer threats. Malware, though, such as Trojans, scripts, overwriting viruses and joke programs which are identified as uncleanable, should simply be deleted.

All Internet users:

  • Use HouseCall - the Trend Micro online threat scanner to check for malware that may already be on your PC.
  • Catch malware/grayware before they affect your PC or network. Secure your Web world with Trend Micro products that offer the best anti-threat and content security solutions for home users, corporate users, and ISPs. Go here for more information on Trend Micro products that fit your needs.


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