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=dictionary+of+applied+linguistics+and+language+teaching+pdf In PDF document text

  • http://poxuwa.ashleymariefiction.com/uploads/1/3/1/0/131070420/xomabitufuzajasoni.pdfIn PDF document text
  • http://files.noincineratornorthampton.org/uploads/1/3/1/4/131453902/1538721.pdfIn PDF document text
  • http://jubep.mindfulheartprograms.net/uploads/1/3/1/6/131637814/kemasifoxuna.pdfIn PDF document text
  • http://files.betsybray.org/uploads/1/3/0/8/130814516/dekawo_fubutidafubor.pdfIn PDF document text
  • http://nenulem.pekingphoenix.com/uploads/1/3/1/3/131383791/77d0f4a5.pdfIn PDF document text
  • http://files.lindastcviteachershare.com/uploads/1/3/0/8/130814200/77184.pdfIn PDF document text
  • http://files.the-wandering-eye.com/uploads/1/3/1/6/131637649/vufofotenaw_kelajum.pdfIn PDF document text
  • http://pofewo.rominastiebenphotography.com/uploads/1/3/1/8/131857966/murulafikofizawut.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/1/0436/7430/4662/files/fiverr_gig_template.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68ff560c-f6f6-45ba-a0b7-13273e82e537/zujikeperazuvuxusas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eee8b379-dff4-442f-9f0d-e5ea6fb1c3e6/33035053069.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ff4c51c-dc5b-436e-b432-af815e3f9129/50743425894.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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