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Trojan.PDF.CVE20163198.A

January 12, 2024
 Analysis by: Raymart Christian Yambot
 ALIASES:

JS:CVE-2016-3198-A [Expl] (AVAST)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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:

13,424 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

10 Jan 2024

Payload:

Connects to URLs/IPs, Displays message/message boxes

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:

  • Connects to the following URL to retrieve the arbitrary code:
    • https://{BLOCKED}}4.rs
  • Displays a PDF text annotation containing malicious code to execute a cross-site scripting (XSS) attack and execute arbitrary code.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.936.03

FIRST VSAPI PATTERN DATE:

12 Dec 2023

VSAPI OPR PATTERN File:

18.937.00

VSAPI OPR PATTERN Date:

13 Dec 2023

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 Trojan.PDF.CVE20163198.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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