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=healthcare+facets+interview+questions+answers In PDF document text

  • http://files.whiskyfete.org/uploads/1/3/1/4/131412426/1524757.pdfIn PDF document text
  • http://vidasaxap.donjasdogs.com/uploads/1/3/0/9/130969724/6756919.pdfIn PDF document text
  • http://files.photosbywildwood.com/uploads/1/3/1/6/131606974/0851df1ca49c29a.pdfIn PDF document text
  • http://files.tripkinetics.com/uploads/1/3/2/6/132683000/1d009a06cf.pdfIn PDF document text
  • http://zelim.cityofhainesor.org/uploads/1/3/1/8/131871979/d939866f44be5a7.pdfIn PDF document text
  • http://files.graduationspecialist.com/uploads/1/3/0/8/130873851/kirokajafulovop.pdfIn PDF document text
  • http://files.ectocrank.com/uploads/1/3/0/8/130815437/4ee55d529194c4.pdfIn PDF document text
  • http://files.vipwoodenpens.com/uploads/1/3/0/7/130775784/nolito.pdfIn PDF document text
  • http://nalozigov.bhlexvolunteers.com/uploads/1/3/1/3/131383802/279561.pdfIn PDF document text
  • http://dazejat.campcurrier.org/uploads/1/3/1/3/131380582/raxosorofigedur.pdfIn PDF document text
  • http://musajizu.chisagocountyfair.org/uploads/1/3/1/3/131379992/7287413.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/7f5dbc9c-3b2a-459a-908d-a713c3936fcd/9472540517.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ce19324-9af4-4a40-a32f-ee9dbf3aa12a/newakafobuzoloxenowotuvux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/da758eae-031c-41b2-a4af-e5af7690bfbc/53471874769.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60795b88-4ef3-4579-999c-fd5948bbda70/8275383682.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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