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=ffxi+monk+belts In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370051/normal_5fa356a03aea9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371272/normal_5f95dc8f08ec6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411681/normal_5fa28d436c7cc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376850/normal_5f9726bc4fa03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374024/normal_5f9ed0fbe096a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374956/normal_5f8aeb99e902c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374968/normal_5f94e133eef9d.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/c2fae96f-a57d-430b-9b71-31e7a9afb0b9/23849071654.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7587/0630/files/89959271174.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/639d769f-ec49-4d83-a2c7-d88919a71d12/step_2_mailbox_541200.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2577/4754/files/12.1_the_arithmetic_of_equations_section_review_worksheet_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c48e2cd1-8661-4745-8f71-ef7b14f00cea/english_bill_of_rights_simplified.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d934edd-9c8b-4297-83ef-57d114621058/troop_committee_challenge_training.pdfIn PDF document text
  • https://s3.amazonaws.com/tuxenipup/atlantis_gym_equipment.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47bf3996-9786-4167-bed1-ee666b8374fd/yellow_things_on_milkweed.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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