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://ggtraff.ru/123?keyword=itextsharp+convert+docx+to+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402486/normal_5f945e2f56b4c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368501/normal_5f877fb6c14e0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378604/normal_5f90ea137ae36.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369142/normal_5f87abfd5f56d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388407/normal_5f91c4f394720.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366395/normal_5f871be4b493f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366063/normal_5f90e3ede9b69.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0483/2280/5913/files/how_often_should_rescuers_switch_positions_during_cpr.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2587/3050/files/usc_manual_of_cross_connection_control.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/dr_color_chip_repair_reviews.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0692/5720/files/doss_home_speaker_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/50384b1d-9dc8-46e5-94d4-a9ed740f60d7/38314068446.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27e1d0e9-66f4-44e5-a372-793adde5ce41/fawoxokiredukinenumasam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/76a1ae3a-7252-4027-b841-90285c0eb406/74740333968.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6286/0197/files/tajufojifefubiwufarazulo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5390/7605/files/xekuputamumidub.pdfIn PDF document text
  • https://s3.amazonaws.com/lodazojamuva/40005462952.pdfIn PDF document text
  • https://s3.amazonaws.com/zizene/jomoxasalimazufugivofa.pdfIn PDF document text
  • https://s3.amazonaws.com/tesotiwapax/ct_file_sang_jpg.pdfIn PDF document text
  • https://s3.amazonaws.com/rorives/dissertation_acknowledgement_example.pdfIn PDF document text
  • https://s3.amazonaws.com/gotijejaj/biology_in_hindi_question_and_answer.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

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