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TROJ_PIDIEF.XXRJ

June 12, 2015
 Analysis by: Homer Pacag
 ALIASES:

Trojan:W32/FakePDF.A (F-Secure); Troj/PDFDown-B (Sophos)

 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

Infection Channel:

Dropped by other malware, Downloaded from the Internet

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:

254,297 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

15 May 2015

Payload:

Connects to URLs/IPs

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.

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}anegocios.net.br/SxGqYND1CP8

NOTES:

The PDF file contains a URL that needs to be clicked by the user.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.676.04

FIRST VSAPI PATTERN DATE:

18 May 2015

VSAPI OPR PATTERN File:

11.677.00

VSAPI OPR PATTERN Date:

18 May 2015

Step 1

Scan your computer with your Trend Micro product to delete files detected as TROJ_PIDIEF.XXRJ. 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 this Knowledge Base page for more information.

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

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


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