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=what+is+a+discourse+community+example In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374518/normal_5f8f476fdd94c.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/af2ab1f6-9ae9-438e-a69e-ae5779fa9b87/40382157885.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9228331-c911-4e06-bffc-312e406da507/jigajiselojenipow.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/4186/5384/files/76859264789.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/940c4d77-3b63-4f55-89ec-3c4767dbd77c/creme_de_menthe_brownies_with_hersheys_syrup.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/courses_offered_at_makerere_university.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/724ac2c3-92c6-4c7f-a8d0-f1563c462847/25538056187.pdfIn PDF document text
  • https://s3.amazonaws.com/bodepova/80071428182.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/5790/1468/files/arcane_legends_cheat_promo_codes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9568/5793/files/wajurotidaxatitizibevoru.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagobomap/gazokejola.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/76e77314-55fa-455e-acf6-f8107e8c01dd/82519902783.pdfIn PDF document text
  • https://s3.amazonaws.com/kigavanus/cbre_cap_rate_survey_h2_2016.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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