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.me/123?keyword=android+gradient+color+code In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365642/normal_5f87a8b35f9ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f87043215cdd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375206/normal_5f89fffd1cd38.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365582/normal_5f874f52a7a94.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f87133841dd9.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/0264/5658/files/aabb_technical_manual_19th_edition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/1167/8623/files/90265167444.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7481/8726/files/turbo_pascal_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/4118/6215/files/89387528671.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/56c25b42-72df-46b9-9cbc-b21286587ee0/lionel_kw_transformer_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8321/1975/files/cary_chinese_school_calendar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6960/2978/files/lay_clergy_member.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9411/4455/files/30519135317.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6075/6641/files/teletogeduwafodinamufut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36156756-e245-4034-b6e4-111ade98e950/sojowal.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6d4b236-9263-4600-a956-c5da5169bbb4/lanuzuw.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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