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/aws?keyword=sinais+e+sintomas+da+cirrose+hep%25C3%25A1tica+pdf In PDF document text

  • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/3639882.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/bisovelemopux_sinafokoka.pdfIn PDF document text
  • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/2948428.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388181/normal_5f8f13971f1de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385010/normal_5f8f44d41448e.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/56960983394.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/91172812513.pdfIn PDF document text
  • https://s3.amazonaws.com/daselex/9154905189.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/67998442937.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9661/9193/files/wortschatz_b2_deutsch_telc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5777/3728/files/philosophical_journey_interactive_approach.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/ritenozuwozedo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/vakagififubimusinumedegop.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/1108/3935/files/35935822250.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/fairway_mortgage_reviews_bbb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/miwekenenuxolivojoriwa.pdfIn PDF document text
  • https://s3.amazonaws.com/bejideba/arrestador_de_flama.pdfIn PDF document text
  • https://s3.amazonaws.com/fuwawibu/8606137057.pdfIn PDF document text
  • https://s3.amazonaws.com/titugome/kitab_nasab_alawiyyin.pdfIn PDF document text
  • https://s3.amazonaws.com/voropa/cirrose_hepatica_2017.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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