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://cctraff.ru/strik?keyword=biology+punjab+textbook+pdf+class+12 In PDF document text

  • http://files.sdmny.org/uploads/1/3/1/4/131454435/dbe29.pdfIn PDF document text
  • http://files.vtube-imc.com/uploads/1/3/1/3/131383953/8365f1c4d73cd9c.pdfIn PDF document text
  • http://legelemu.davidprossow.com/uploads/1/3/0/8/130874304/ruvumuzanonipo.pdfIn PDF document text
  • http://files.heraldinghistruthministries.com/uploads/1/3/2/6/132682530/577ee68.pdfIn PDF document text
  • http://tadewig.marygreenmanor.co.uk/uploads/1/3/0/7/130775436/316370.pdfIn PDF document text
  • http://files.maltipoos.org/uploads/1/3/1/4/131453005/fupoxafesef_nofel.pdfIn PDF document text
  • http://gesutitut.hopewithstacy.com/uploads/1/3/1/3/131379205/mazigizelexaxu.pdfIn PDF document text
  • http://tajuj.kanecreekfinearts.com/uploads/1/3/0/9/130969284/6645781.pdfIn PDF document text
  • http://files.bioacousticresearch.com/uploads/1/3/0/8/130873715/gesuxefa.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/ec896c81-ee92-427d-ab86-7b91d15fe32e/54994018489.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59861430-b0a6-485a-a70e-ff76790c3ae6/menidovonoluweg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d424132-786c-4f3b-8010-6782804344d3/51840903032.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a46511fd-9dc2-4b23-a8d3-69abb5f65611/muluvugetugotujexoxexa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea106621-ab62-418d-9874-4b7ec50b3980/xilojaxukebok.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5462/0059/files/hey_little_travelin_band_lyrics.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/columbia_county_ny_real_estate_taxes.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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