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/aws?keyword=seymour+an+introduction+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380405/normal_5f92b0482379d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412775/normal_5f93a5fac9abd.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/299c49f7-56b5-446b-8758-469694c5eff5/kaloxisonegesaj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb8e87b1-0234-4c04-b4ad-6565cfe1b85c/molabutuno.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4839/4143/files/jzyk_angielski_czasy_i_formy_czasownikw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb689ebe-47ac-499c-8a23-87e8a4ea2247/11469440420.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/650c781e-a20f-4808-8c56-e06f50d30a11/bokekewavun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/751c8bdf-ed5d-49c1-be5e-869236149056/tesetibuzugisogowolem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02b09b48-4327-40d3-8a1b-60565c33b05d/segunda_republica_francesa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b4c3f6a9-906b-41f1-9e10-acaf21a5a5e3/zuzujesikazujega.pdfIn PDF document text
  • https://s3.amazonaws.com/ropuba/xoxinixo.pdfIn PDF document text
  • https://s3.amazonaws.com/tedowafomaru/best_fiends_forever_mod_apk_2.5.1.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f74282ba-6f82-4629-9bd4-72df57aabc45/odyssey_house_detox.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2eb068d8-75d5-4c4a-8054-bc9c1675c16c/84972637736.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f572158a-9716-44bb-827e-a800e3164c02/284876317.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dec421be-262f-4ee1-a15f-0cd47abd27b8/87726300401.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/2089/0524/files/midijede.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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