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.club/wix?keyword=the+hobbit+desolation+of+smaug+subti 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
  • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
  • http://smc.org.inhttp://smc.org.inIn PDF document text
  • http://www.indictrans.orgIn PDF document text
  • http://www.opentle.orgIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_545d58b1651b46a18cf7f2d7318c0028.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_81e8c549e290426da2139fed73d8dbea.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_0430c70f4fc94b58b4a252bb469f3863.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_e7bc6c056ca04b09b4f4358b3b6990b8.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_ef4ad88f48ad48e197326ad8a46f24c9.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_6aecdae74ae14960af658b92618a68f8.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_2f4c05d4cd9f4809ad1a8fb468ce694b.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/8de238_dab80abbacce483d877b0d944eba2b28.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/75133086934.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7526/3898/files/hypertension_treatment_guidelines_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/1315/2673/files/bawanodixiw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5114/6649/files/make_your_math_worksheets.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4368/2469/files/python_if_answer_yes_stop_program.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
  • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
  • http://sinhala.sourceforge.net/In PDF document text
  • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
  • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
  • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

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