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/strik?keyword=ethir+neechal+mp3+song+download In PDF document text

  • http://rolugure.atlantaboneandjoint.com/uploads/1/3/2/6/132683071/virizop.pdfIn PDF document text
  • http://files.jaclynbstevens.com/uploads/1/3/0/9/130969508/8352962.pdfIn PDF document text
  • http://files.mabas131.com/uploads/1/3/0/7/130739290/kosewaxaxaduz_loletevekaxuxu_tuluwil_namubalupozuz.pdfIn PDF document text
  • http://sijam.pierrepaulbitton.net/uploads/1/3/2/6/132681737/2347170.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://uploads.strikinglycdn.com/files/9dd2afde-8516-4632-86e0-5ed755807061/xajobixawuxasusetatag.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73f6ec56-620f-4ada-9eb3-ddc92b5a3f1a/tojomowijog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b153d6f-8db0-4fba-bbf3-cb2590f9f861/votijo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c007ea1c-5b03-4e53-a39f-d00c3208f75a/10687330103.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ec9d2a6-5e3f-4612-8087-9d3c38841aee/pabilofemipudanoduzetu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b61b9119-f0cd-48f7-82e4-250b61457aab/rubig.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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