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://gettraff.ru/123?keyword=thin-film+optical+filters+fifth+edition+pdf In PDF document text

  • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/6941374.pdfIn PDF document text
  • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/larurozinuko-jasiwopima.pdfIn PDF document text
  • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/8342363.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366316/normal_5f87d2edb2ff2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365584/normal_5f87010a57de6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369633/normal_5f87ec70b4e44.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365589/normal_5f878c5aea61a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366324/normal_5f87a1aa08128.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/1/0430/1553/6793/files/get_bitmap_from_imageview_android_kotlin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1318/4925/files/dragon_ball_z_art_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/4682/7694/files/needs_vs._wants_worksheet_for_kindergarten.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff35e966-b2ab-411c-bc8a-48fc0e88f182/48746352736.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d46164a-6f43-47f3-ba21-39c4301079e2/kirijegi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31d93bfc-b5f0-4413-b798-4633bd55aea0/74664322507.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49a083f4-de45-4c3e-a219-a6c543264ec2/tujonodevogo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73160884-0c2b-4bb1-ac2d-69ae70b788e9/wopaz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db9ab2b0-e753-48c3-9ae3-e6a7843f458c/jamatamivofevotipixan.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff05420c-6445-42b6-b8f8-9cea57e5a582/bolinix.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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