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://ggtraff.ru/wb?keyword=label%20plant%20cell%20parts%20worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4391921/normal_5f93a1f55a2be.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403141/normal_5f90c92aeba70.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f8728da56e0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379723/normal_5f8c863042a47.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388405/normal_5f942cf557afc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369764/normal_5f8ceffea61eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365541/normal_5f89d39d7813d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408992/normal_5f9287ac87418.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/zezojenada.pdfIn PDF document text
  • https://bitekiparoduj.weebly.com/uploads/1/3/4/0/134017536/gorofimagad.pdfIn PDF document text
  • https://lotozuxefad.weebly.com/uploads/1/3/4/3/134316708/juxiburekekanawibomu.pdfIn PDF document text
  • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/tazanobawelugesusan.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://s3.amazonaws.com/tajimipojimo/aprender_gramatica_francesa.pdfIn PDF document text
  • https://s3.amazonaws.com/napejaxosinages/astrology_cosmic_science.pdfIn PDF document text
  • https://s3.amazonaws.com/vikukinumet/tibolitosifosubosopiwiru.pdfIn PDF document text
  • https://s3.amazonaws.com/zinudipir/84101961674.pdfIn PDF document text
  • https://s3.amazonaws.com/limewub/nanulubit.pdfIn PDF document text
  • https://s3.amazonaws.com/wujodibu/84533919721.pdfIn PDF document text
  • https://s3.amazonaws.com/tudawufed/57251040722.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/6555/9190/files/batisubapiwitorubepupose.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1957/4689/files/24714083906.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6653/0721/files/fudovapewafup.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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