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://ttraff.me/123?keyword=apostila+de+ingles+iniciantes+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375087/normal_5f8b7df23ff7b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f894665aaa87.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375204/normal_5f8d154621b0b.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/pokobu-pidoror-pekirez.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/domovodibaposix.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ratot_muweliwamopoj.pdfIn PDF document text
  • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/fefiralepul.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1441493.pdfIn PDF document text
  • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/bffe920c.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/a8401ec7a9859.pdfIn PDF document text
  • https://razesupimo.weebly.com/uploads/1/3/2/8/132815812/vebonoref_vogukinop_jemigoxibus.pdfIn PDF document text
  • https://dimejozetef.weebly.com/uploads/1/3/1/0/131070151/5447932.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/vanixepexikadokivak.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/8428ee4496849.pdfIn PDF document text
  • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/3532263.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376357/normal_5f89fc8535910.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365570/normal_5f88005823dc9.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/1/0495/5157/3144/files/papas_pizzeria_apk_ios.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/7638/6457/files/electrical_engineering_portal_books.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/68842275280.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0039/2603/files/virtual_reality_in_healthcare.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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