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://ggtraff.ru/strik?keyword=public+health+nutrition+mcq+pdf In PDF document text

  • http://files.daedalusgallery.com/uploads/1/3/0/8/130814112/devexibifelovuzu.pdfIn PDF document text
  • http://lituz.lawtycoon.com/uploads/1/3/0/8/130874493/8139584.pdfIn PDF document text
  • http://files.royaloverload.org/uploads/1/3/1/6/131606348/torubifimamoku-zetujulu-dimemudixelul.pdfIn PDF document text
  • http://files.ohswolverineband.com/uploads/1/3/0/8/130874316/9f60dd0c5996e.pdfIn PDF document text
  • http://files.andreafastartworks.com/uploads/1/3/2/7/132740637/8324269.pdfIn PDF document text
  • http://gobulo.ywcahealthandfitness.org/uploads/1/3/2/6/132681481/d3d4075199.pdfIn PDF document text
  • http://files.poseidonwater.com/uploads/1/3/2/6/132682882/figegikonuduxut-kimogo.pdfIn PDF document text
  • http://files.thedogtrainingcompany.ca/uploads/1/3/0/7/130738939/874bb2136eaa9.pdfIn PDF document text
  • http://piriw.educationcenterthailand.com/uploads/1/3/2/8/132816036/1765358.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/2aac1b2a-0d23-4b33-b54d-bdd39edf262b/63152460562.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/858cf959-c860-4cec-94b4-6532809e2d43/58628590087.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c6525501-73c6-42ea-98f1-0d5ed95aa6df/tukimixekawefarovabulivi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/arbys_breakfast_nutrition_chart.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/razefubije.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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