Analysis by: RonJay Kristoffer Caragay
ALIASES:

SWF/Exploit.CVE-2014-0556.D (ESET-NOD32)

 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: 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. It may be hosted on a website and run when a user accesses the said website.

It does not have any propagation routine.

It does not have any backdoor routine.

It takes advantage of software vulnerabilities to allow a remote user or malware/grayware to download files.

It does not have any information-stealing capability.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size: 17,955 bytes
File Type: SWF
Memory Resident: No
Initial Samples Received Date: 30 Jun 2015
Payload: Downloads files

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.

It may be hosted on a website and run when a user accesses the said website.

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Download Routine

This Trojan takes advantage of the following software vulnerabilities to allow a remote user or malware/grayware to download files:

  • Adobe Flash Player Heap Buffer Overflow Vulnerability (CVE-2014-0556)

It downloads a possibly malicious file from a certain URL. The URL where this malware downloads the said file depends on the parameter passed on to it by its components.

Information Theft

This Trojan does not have any information-stealing capability.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

NOTES:

It does not have rootkit capabilities.

  SOLUTION

Minimum Scan Engine: 9.750
FIRST VSAPI PATTERN FILE: 11.762.05
FIRST VSAPI PATTERN DATE: 30 Jun 2015
VSAPI OPR PATTERN File: 11.763.00
VSAPI OPR PATTERN Date: 01 Jul 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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as SWF_EXPLOYT.JH. 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 4

Download and apply these security patches Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.  


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