TROJAN.SWF.CVE201815982.AC

January 23, 2019
 Analysis by: Michael Jhon Ofiaza
 PLATFORM:

Windows

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

  • Threat Type: Exploit

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This malware is implicated as an exploit for the zero-day vulnerability in Adobe Flash Player known as CVE-2018-15982. This exploit made its rounds via drive-by downloads.

This Exploit arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It takes advantage of certain vulnerabilities.

  TECHNICAL DETAILS

File Size:

4,178 bytes

File Type:

SWF

Memory Resident:

No

Initial Samples Received Date:

21 Jan 2019

Payload:

Executes files

Arrival Details

This Exploit arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Exploit requires the existence of the following files to properly run:

  • {Malware Path}\LOG.dat
  • {Malware Path}\LOGS.dat

It does the following:

  • Uncompress and executes the following files:
    • {Malware Path}\LOG.dat
    • {Malware Path}\LOGS.dat

It takes advantage of the following vulnerabilities:

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.764.07

FIRST VSAPI PATTERN DATE:

21 Jan 2019

VSAPI OPR PATTERN File:

14.765.00

VSAPI OPR PATTERN Date:

22 Jan 2019

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

Scan your computer with your Trend Micro product to delete files detected as TROJAN.SWF.CVE201815982.AC. 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:

Step 3

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.  CVE-2018-15982


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