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=questions+for+ada+free+pdf In PDF document text

  • https://site-1039583.mozfiles.com/files/1039583/xeruxanepemijadomodote.pdfIn PDF document text
  • https://site-1037221.mozfiles.com/files/1037221/94306533156.pdfIn PDF document text
  • https://site-1045398.mozfiles.com/files/1045398/53900489234.pdfIn PDF document text
  • http://files.pollinatorsnativeplants.com/uploads/1/3/0/8/130873946/sudumobojosube_wunofodukaluz_rijade_mimowotijetam.pdfIn PDF document text
  • http://wudumo.tapiaartstudio.com/uploads/1/3/0/7/130738625/6c20617.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/0c851b53-8b0f-434b-adb9-86165aad9c5a/zifasilemebunawevosogusut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b21ece3-d9da-46aa-856b-c25326dd13d2/75984553566.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fc4e53ec-f3f9-4db7-b92a-1c315e26df26/47190149499.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4804b47f-1298-43b6-ac77-22fa57423dbf/11021319720.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61545a27-61d0-4bdd-abb5-c4f8214c3ece/50115834461.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8050667b-d6c3-442c-b1af-1ca7f7929bc4/71316426434.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51854e85-4de4-4b09-a77e-8c91ba36cef8/gogurubiw.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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