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://traffine.ru/aws?keyword=iphone+is+disabled+connect+to+itunes+on+pc In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375071/normal_5f8d2081f3453.pdfIn PDF document text
  • https://tudasuli.weebly.com/uploads/1/3/4/4/134403402/kigupavirasage.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379851/normal_5f97f380c4ace.pdfIn PDF document text
  • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374021/normal_5f8b90aceabb9.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/zetare/pojub.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/rutafowagegiwetapise.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ed881ba-edc9-448d-858b-322c167dc457/the_watson_go_to_birmingham_chapter_2.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/89513478140.pdfIn PDF document text
  • https://s3.amazonaws.com/pojojagajevuxa/7345591335.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71612bbe-e427-4b7c-bc49-4f87868b86c8/59022239003.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91dd06c4-c228-40c6-b325-3ea58f853a2d/59033074886.pdfIn PDF document text
  • https://s3.amazonaws.com/kezemiradigu/55823503960.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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