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SWF_EXPLOYT.LDCD

November 29, 2014
 Analysis by: Jaime Benigno Reyes
 ALIASES:

BehavesLike.Flash.Exploit.cb (McAfee); Troj/SWFExp-CD (Sophos); SWF/Exploit.ExKit.L (Nod32)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • 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. It may be hosted on a website and run when a user accesses the said website. However, as of this writing, the said sites are inaccessible.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size:

87,361 bytes

File Type:

SWF

Memory Resident:

No

Initial Samples Received Date:

02 Nov 2014

Payload:

Downloads files, 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.

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

It may be downloaded from the following remote sites:

  • http://{BLOCKED}44b4.{BLOCKED}inghoerblast.com:80/4Ua6Ro1OOcPg5K1gTveDUp6e-sg3lGTvKYewIeLYXoQdTflVWsyyrAhF2ZeKI9uL
  • http://{BLOCKED}olasoftaga.{BLOCKED}psdaily.com:80/moy0OK8oOky7qztSSDVdatQeohIdh91ElWoBTgkZjckCub-sYr5pwydV3H4xKVfs
  • http://{BLOCKED}2r9622.{BLOCKED}erblast.com:80/5zOx-VmFMcGyGeXsAE2nqhoOJxGy_2ph2R52vhE4rELr-EjGarvmZBTiaLFz3aPm
  • http://{BLOCKED}93tt1.{BLOCKED}randnever.co:80/tvoto0w8Oa8Q8mnI81AsYwMzWOyH9YRq_WPq_ycL1V4NyzsZ-urgzNZRStdPo-25
  • http://{BLOCKED}e0r9.{BLOCKED}andnever.org:80/fR1e-uUK9P7AC4VEtNMSDqSwhKlN7trFQqomOrzu1m_8WnvpsGuPcNQNvNUZJ0ra
  • http://{BLOCKED}i3jq5.{BLOCKED}host.net:80/JwTZX7PQxRXW63Zi8ASAfQDA01N9H-ITX22onnPhStgV2IhhYBcoi-Uoq9kSX9i7
  • http://{BLOCKED}qri3jq5.vbehost.net:80/mzBPtAEDXYJxWSiiUA6C9g_n5znYgFQjyWb_8kJNiSThw9axUUH3hWYgDl817klI

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

Download Routine

This Trojan takes advantage of the following software vulnerabilities to download possibly malicious files:

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

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.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

11.252.01

FIRST VSAPI PATTERN DATE:

02 Nov 2014

VSAPI OPR PATTERN File:

11.253.00

VSAPI OPR PATTERN Date:

03 Nov 2014

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.LDCD. 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 this security patch 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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