Malicious PDF — malware analysis report

Static analysis result for SHA-256 340f56b9f254a160…

MALICIOUS

PDF

6.4 KB Created: 2015-06-08 01:27:04 +04:00 Authoring application: DOMPDF First seen: 2015-06-23
MD5: 740d2af2b78a61117e83022fcba0968c SHA-1: bf32997b843c2d20bfce9946fa43d6dbf97a9c44 SHA-256: 340f56b9f254a160a381f2a2f65993ef69bb3b3083c4a2e207216358f9200410
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs disguised as educational content about trading and financial markets. The heuristic 'PDF_SEO_PHP_GATEWAY_LINK_FARM' indicates these links are likely part of an SEO spam operation designed to drive traffic to malicious or scam-related websites. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests that the document may also be intended to trick users into providing passwords for archives, a common tactic to bypass security scanning.

Machine Learning

  • Nyx PDF Classifier clean score 0.1458

Heuristics 3

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
    PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://skladaniekomputera.pl/index.php?starkinsider/2015/wiki/is+binary+options+gambling.pdf&baynt=1&news=3278 In PDF document text
    • http://www.targetdigital.com.br/index.php?lukesuf/2015/wiki/binary+option+profits.pdf&oradu=3&news=1440In PDF document text
    • http://pizzaioli.com/index.php?pcsite/2015/wiki/my+binary+code+review+scam.pdf&bwfyd=3&news=4573In PDF document text
    • http://www.carnitina.com.mx/index.php?nintendofuse/2015/wiki/binary+options+neteller.pdf&ypvvc=3&news=528In PDF document text
    • http://jackreev.es/index.php?sizinsite/2015/wiki/binary+options+on+stock.pdf&zgzsy=2&news=3073In PDF document text
    • http://pinamar.com.ar/index.php?receitasdept/2015/wiki/binary+options+macd.pdf&wqpfa=3&news=2910In PDF document text
    • http://www.sehgal.co.in/index.php?campusfocus/2015/wiki/binary+trading+best+site.pdf&yyjsx=2&news=sitemapIn PDF document text