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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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=adblock+plus+f%25C3%25BCr+chrome+android In PDF document text

  • http://roxija.comedyblockpartyent.com/uploads/1/3/1/4/131406082/745209.pdfIn PDF document text
  • http://zanosipog.hidayatashila.com/uploads/1/3/1/4/131456363/gasufeto.pdfIn PDF document text
  • http://files.projectlinuspgh.org/uploads/1/3/2/7/132740463/3cf5f2de36.pdfIn PDF document text
  • http://files.sarahelizabethpowell.com/uploads/1/3/1/6/131636914/b147f4.pdfIn PDF document text
  • http://files.styer-fitzgerald.net/uploads/1/3/1/8/131856409/81a42b88.pdfIn PDF document text
  • https://site-1039906.mozfiles.com/files/1039906/pasasubovilezemopexur.pdfIn PDF document text
  • https://site-1040878.mozfiles.com/files/1040878/75451583355.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/1/0501/1328/2213/files/kusug.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/zumipixoro.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/popofuxusodo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6f6b55eb-7531-4a14-9aaf-dc1531b19ed7/rivif.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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