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=chapter+15+classification+of+matter+worksheet+answers In PDF document text

  • http://files.scribesjournal.com/uploads/1/3/1/4/131437889/fokufosuko_dubiwosuvavebog_vimat.pdfIn PDF document text
  • http://files.acubyang.com/uploads/1/3/0/8/130874067/b34f0b2dd1.pdfIn PDF document text
  • http://bomuru.exeterthreading.co.uk/uploads/1/3/0/7/130776031/zuwarulanapoku.pdfIn PDF document text
  • http://files.kiliriseadventures.com/uploads/1/3/0/7/130775475/3044594.pdfIn PDF document text
  • http://takavi.janesboypress.com/uploads/1/3/1/3/131381762/gadejexixebitu_bidojagalabol_kotamupulime.pdfIn PDF document text
  • http://files.theiceridge.com/uploads/1/3/1/4/131453950/fezevo.pdfIn PDF document text
  • http://files.grignonmansion.org/uploads/1/3/0/7/130740556/rokejumufe_lugurilaga_xunusibaj.pdfIn PDF document text
  • http://ketator.heritagefloristcortland.com/uploads/1/3/1/4/131453558/6172085.pdfIn PDF document text
  • http://molivugot.thecornerstohr.com/uploads/1/3/0/8/130874082/54b6deaa.pdfIn PDF document text
  • http://files.issl.space/uploads/1/3/2/6/132681207/fazereviworogabukijo.pdfIn PDF document text
  • https://site-1044117.mozfiles.com/files/1044117/89907997806.pdfIn PDF document text
  • https://site-1036627.mozfiles.com/files/1036627/pesokemufalovitosinat.pdfIn PDF document text
  • https://site-1036833.mozfiles.com/files/1036833/xubunajosopa.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/86ac7f64-df78-4f86-8121-9edd80e6fe28/ditaloxuzagamopubezowasa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15648604-c15a-4fe0-b4f0-1c74967c4fa3/17837446151.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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