Malicious PDF — malware analysis report

Heuristics 4

• 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 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/wb?keyword=engine%20manual%20for%20troy%20bilt%20storm%202410 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385412/normal_5f9203e85744e.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
  • https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/padulusadan_goxosana_mumudiratonoron_lilujod.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381748/normal_5f91aa382d4d1.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/faluzotixupi/wamix.pdfIn PDF document text
  • https://s3.amazonaws.com/befevifa/precise_language_worksheet.pdfIn PDF document text
  • https://s3.amazonaws.com/toguvaju/ganilurodimimeto.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a983b059-04e8-4207-9ccc-f9562f48781f/rizurabibusidajesejetiti.pdfIn PDF document text
  • https://fimalul.files.wordpress.com/2020/11/xenikefeg.pdfIn PDF document text
  • https://s3.amazonaws.com/giwurode/winetuzir.pdfIn PDF document text
  • https://fizafadolozu.files.wordpress.com/2020/11/31713389540.pdfIn PDF document text
  • https://s3.amazonaws.com/lebaxa/jasolizekamewake.pdfIn PDF document text
  • https://wixiruxagijo528758637.files.wordpress.com/2020/11/regulation_of_respiration_physiology.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/501ba43a-37bd-4aef-beda-7f15e42fe1ce/40606936271.pdfIn PDF document text
  • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
  • https://nisonotapuf.files.wordpress.com/2020/11/16177537775.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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