Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://ttraff.ru/wix?keyword=dj+remix+telugu+language+songs In PDF document text

  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://static.usrfiles.com/ugd/05900a_e200d99c9d1a44588026bb4237aaf227.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/7ea8bb_88df5de83c034c8fb21a3b6fbc99e521.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/d01287_5394aedaf1c34ee990ddbcfbcf0714eb.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/7e6083_3915c9a0fe3e4b9cbd27bd49a0d23055.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/3b0c81_98186376c7ac4ee88f9fce485a34aa63.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/1e32c2_a25e9dbeddef4990a42096682d774868.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/a2d007_d305297f221d470abb132464daafc438.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/a107db_a0cf101b58d441a2b38fc9cdb96aa58c.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/09273f_7d54e22cb7eb4674bc8c4378576024da.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/0aab01_8e45b215dea64acd990e5053c5a72fa7.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/d2cc1f_e7848b876feb4d5690b727a0366b66ae.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/565485_bfc9f208c1a64289836ab51b9d80bbe7.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b9801a_90430a354e97446fb3901c7905c692d2.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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