Analysis by: Christian Noel Olalia
 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: Via email, Dropped by other malware

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.

It steals certain information from the system and/or the user.

  TECHNICAL DETAILS

File Size: 16,973 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 27 Feb 2018
Payload: Steals information, Connects to URLs/IPs

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.

Information Theft

This Trojan steals the following information:

  • Email Address
  • Password

Other Details

This Trojan does the following:

  • This Trojan presents the user a fake message tricking them to click on the following link:
    • Upon clicking the "View Invoice Attached" image/button, the malware will connect to:
      • https://{BLOCKED}.{BLOCKED}.au/secure

NOTES:

This Trojan presents the user a fake message tricking them to click on the following link:

After clicking on the link, it shows a spoofed Office 365 page:

After logging in, a message box will appear:

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 14.110.02
FIRST VSAPI PATTERN DATE: 05 Mar 2018
VSAPI OPR PATTERN File: 14.111.00
VSAPI OPR PATTERN Date: 06 Mar 2018

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as PDF_MALPHISH.AUSJEQVK. 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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