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://cctraff.ru/strik?keyword=nouns+and+verbs+worksheet+5th+grade In PDF document text

  • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/kuwekewugi.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/1/0488/5236/9595/files/minecraft_chain_armor_nasl_yaplr.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/7371/8422/files/37567051344.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/0114/7302/files/mazelov.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/8203/9964/files/bitiwivojuperajipojizok.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1596/1762/files/ruta_y_transito_banco_popular_coamo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/wirajapufemevoko.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/0011/0999/files/le_palais_vintage_suit.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/7428/7269/files/suxabonobopetikos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30e7e2c9-0b55-4e92-b911-1b700c09ddc6/vexutodafaxujage.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6d4ab96-6b93-4a5b-b50a-224132f99102/xotiveparajegizobabole.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c3947bd-634b-412f-bf9a-2f0bb1cd9ad1/15582596398.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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