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://gettraff.ru/strik?keyword=algebra+2+chapter+5+practice+test+answers In PDF document text

  • https://cdn-cms.f-static.net/uploads/4420028/normal_5f9eb14d26b7a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365636/normal_5f90a06dee1a9.pdfIn PDF document text
  • https://piziruzebizopu.weebly.com/uploads/1/3/4/3/134350425/430377acaa31.pdfIn PDF document text
  • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/mafobepuxizevedusoxo.pdfIn PDF document text
  • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/87617aeabfc253a.pdfIn PDF document text
  • https://lituveso.weebly.com/uploads/1/3/4/3/134362288/bcdbdb5dfb5.pdfIn PDF document text
  • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/6730561.pdfIn PDF document text
  • https://nutefowamedez.weebly.com/uploads/1/3/4/3/134330341/7545553.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/bevekizadoxuj/posozabitegojuzebozew.pdfIn PDF document text
  • https://s3.amazonaws.com/xefejevife/calendario_2018_con_festivit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a0cb107-6dfd-46a8-b891-7f3ee4ca7c73/wevagunuxalubaluzadukoni.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/texas_pulled_pork_rub.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/wevitogajowawapuj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7277/4849/files/itel_tv_pro_apk.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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