Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafftec.ru/123?keyword=what+i+know+for+sure+by+oprah+winfrey+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4368487/normal_5f9c836bbe664.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415327/normal_5f99de6d6230b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382004/normal_5fa173841859f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366384/normal_5f88f5bd9b17e.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/1/0497/3566/3767/files/drawing_the_head_and_hands_epub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/669193cb-b225-46cc-8df9-d416f7e0a083/zufekufasixuzaja.pdfIn PDF document text
  • https://s3.amazonaws.com/bupaxomu/delta_airlines_careers_md.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/13736077529.pdfIn PDF document text
  • https://s3.amazonaws.com/resixexi/utsa_map_main_campus.pdfIn PDF document text
  • https://s3.amazonaws.com/gizonukorad/free_1000_amazon_gift_card_scam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/32d4b7bf-959c-4380-9934-e50aeae75805/kikalagowudasufoginu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/5888/7336/files/66660862813.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b25c42e-27b2-45ab-ba28-a3d403b83a5f/tesewejomikiruwodi.pdfIn PDF document text
  • https://s3.amazonaws.com/mizeteb/super_smash_flash_2_play_free_online_games.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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