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://traffine.ru/aws?keyword=rectangle+area+calculator+diagonal In PDF document text

  • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/maruj.pdfIn PDF document text
  • https://wodelegijulafa.weebly.com/uploads/1/3/4/6/134677223/ad75bf05c578a9.pdfIn PDF document text
  • https://rogidalot.weebly.com/uploads/1/3/1/6/131636841/wunosaxigorurig.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/df2d6d8b-2af7-43b9-a302-a318152bb444/lizidaguforikata.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a24989e6-bbc0-4f74-8cc7-7aced886a92e/61819565362.pdfIn PDF document text
  • https://dututired.files.wordpress.com/2020/11/20743606408.pdfIn PDF document text
  • https://s3.amazonaws.com/bulikowexunepov/pembroke_lakes_elementary_school_hours.pdfIn PDF document text
  • https://zegimok.files.wordpress.com/2020/11/split_page_by_page.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f8f1b54-0224-4e41-a68a-55978a28bce8/pizza_hut_drive_thru_jogja.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fed63995-03c9-4d07-94fc-b21e012c54a8/vulux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/80eddb07-e8a2-45cc-a1ad-58e2b080d539/96003013252.pdfIn PDF document text
  • https://rukawakoxofo.files.wordpress.com/2020/11/personality_traits_worksheet.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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