Malicious PDF — malware analysis report

Heuristics 6

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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.link/pify?keyword=shareit+old+version+apk+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365656/normal_5f876d80a1c53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366978/normal_5f88c0d521ffc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f875529636f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366388/normal_5f87551eb3567.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f8817521abc2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369764/normal_5f88c2324f2de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369324/normal_5f88c3d18d808.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366031/normal_5f86f59f38267.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372737/normal_5f88baa7d5636.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366964/normal_5f8785a579633.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369630/normal_5f88c533958f3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366627/normal_5f875fe043166.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/58aa34c9-0ab3-4804-9c4b-64f82157e1bc/kogujuwominalefajarakexun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7f91c7c7-98d6-4201-87c0-245b8a83f39a/zereruzepolezexer.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/7248/3228/files/alabama_unclaimed_property_law.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/9701/4677/files/walkman_player_android_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/8744/8214/files/being_a_good_citizen_worksheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3805/5841/files/11151473916.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://scripts.sil.org/OFLIn 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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