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PUA.PDF.PDFTest.B

September 09, 2024
 Analysis by: Neljorn Nathaniel Aguas
 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


This Potentially Unwanted Application 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:

655 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

16 Jul 2024

Arrival Details

This Potentially Unwanted Application 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 Potentially Unwanted Application does the following:

  • It displays the following window when opening the PDF:
  • It tests if the PDF reader can execute embedded JavaScript and opens the window with "XSS" message if successful, otherwise it displays the window with error code.
  • It does not contain any readable text.

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

2.745.00

SSAPI PATTERN Date:

18 Jul 2024

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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 PUA.PDF.PDFTest.B. 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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