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TROJ_PIDIEF.DLDR

June 13, 2015
 ALIASES:

PDF/Fakedhl.A!tr (Fortinet), Troj/PDFDown-C (Sophos)

 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:

Spammed via email, Dropped by other malware, Downloaded from the Internet

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 does not have any propagation routine.

It does not have any backdoor routine.

It does not drop any other file.

It does not have any information-stealing capability.

  TECHNICAL DETAILS

Payload:

Downloads files

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.

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Dropping Routine

This Trojan does not drop any other file.

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}s.sarvajanik.com/PktUi3zrJjl

It saves the files it downloads using the following names:

  • DHL_Report_4394489137.zip – detected as TSPY_EMOTET.CA

Information Theft

This Trojan does not have any information-stealing capability.

NOTES:

This Trojan asks users to click on the malicious link to download and open the file:

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.662.08

FIRST VSAPI PATTERN DATE:

11 May 2015

VSAPI OPR PATTERN File:

11.663.00

VSAPI OPR PATTERN Date:

12 May 2015

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

Remove malware/grayware files dropped/downloaded by TROJ_PIDIEF.DLDR. (Note: Please skip this step if the threats listed below have already been removed.)

    • TSPY_EMOTET.CA

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_PIDIEF.DLDR. 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.


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