Analysis by: Jayvee Mark Villaroman
ALIASES:

Trojan:PDF/Phish.SMK!MTB (MICROSOFT)

 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

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.

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

  TECHNICAL DETAILS

File Size: 179,785 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 29 May 2023
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:

  • Interacting with the error message leads to the following malicious website: http://{BLOCKED}x.niamshop.com/Microsoft_Fixit_08.exe ← downloads a malware named Microsoft_Fixit_08.exe (Detected as TrojanSpy.Win32.REDLINE.YXDEZZ)
  • It shows a fake error message that lures a user into accessing a malicious website

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

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 18.486.01
FIRST VSAPI PATTERN DATE: 03 Jun 2023
VSAPI OPR PATTERN File: 18.487.00
VSAPI OPR PATTERN Date: 04 Jun 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.PHISH.VSNTET23. 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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