Analysis by: Neljorn Nathaniel Aguas
ALIASES:

HEUR:Trojan.PDF.Credlik.a (KASPERSKY)

 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.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any information-stealing capability.

  TECHNICAL DETAILS

File Size: 842 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 12 Nov 2025

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.

Propagation

This Potentially Unwanted Application does not have any propagation routine.

Backdoor Routine

This Potentially Unwanted Application does not have any backdoor routine.

Rootkit Capabilities

This Potentially Unwanted Application does not have rootkit capabilities.

Information Theft

This Potentially Unwanted Application does not have any information-stealing capability.

Other Details

This Potentially Unwanted Application does the following:

  • It attempts to execute C:\Program Files\test.exe via the local C$ administrative share when Page 1 is opened.
  • It attempts to run C:\Program Files\test_page_two_open.exe through the C$ admin share when Page 2 is opened.
  • It attempts to launch C:\Program Files\test_page_two_close.exe using the local C$ share when Page 2 is closed.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.709.00
SSAPI PATTERN Date: 14 Mar 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.CVE20184993.A. 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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