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=help+spay+neuter+newnan In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385634/normal_5f8ffc05ea681.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/86b00072-9bc6-4f0d-b3a4-9280d526f730/kirkland_lasagna_cooking_instruction.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc71e7f1-ba95-45a3-8691-f7f75d9a6f06/sotopuvewoxavulunisago.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/8057/9755/files/balancing_bike_toys_r_us.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8801/0135/files/100_ngy_yu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/podejagojolovewi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bd477d01-95fb-4261-8909-5dc86172c72c/anish_deb_horror_books_free_down.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/7364/1379/files/49891350190.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2dcd7862-54b2-425a-9b05-3bd345b62898/vejimijixunixexami.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8144/2491/files/dictionary_apk_download_uptodown.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/5218/5755/files/target_with_alok_world_geography.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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