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Exploit:JS/Pdfka.TI

Classification

Category:

Malware

Type:

Exploit

Aliases:

  • Exploit.js.pdfka.ti

Summary

Exploit:JS/Pdfka.TI is an exploit that can take advantage of two vulnerabilities in a single PDF file in order to download malicious binary files (usually Trojan-Downloader:W32/Bredolab variants) onto the system.

Removal

Technical Details

The vulnerabilities exploited are:

  • Collab.collectEmailInfo() JavaScript Overflow (CVE-2007-5659)
  • Util.printf() JavaScript Overflow (CVE-2008-2992).

Adobe Reader and Acrobat versions 8.1.2 and earlier are affected by the vulnerabilities exploited by this malware.

Activity

Once the vulnerabilities are exploited, binary files are downloaded from:

  • https://[...]/welcome.php?id=5[...]

The downloaded files are saved in the Temporary directory using the following filenames:

  • pdfupd.exe
  • crash.php

The files are then executed.

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