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=krugman+microeconomics+3rd+edition+pdf In PDF document text

  • http://siwik.nakhrewakhre.com.au/uploads/1/3/0/9/130969300/1d79d07.pdfIn PDF document text
  • http://files.auntbebotanicals.com/uploads/1/3/1/6/131606222/9747615.pdfIn PDF document text
  • http://files.katreenadyrek.com/uploads/1/3/0/7/130739538/6904211.pdfIn PDF document text
  • http://files.coloradocollaborative.org/uploads/1/3/0/7/130739081/2709861.pdfIn PDF document text
  • http://ruxizipa.humanmovements.com/uploads/1/3/1/4/131438234/dipabitumizen_voromipofariki.pdfIn PDF document text
  • http://files.olaelua.com/uploads/1/3/1/3/131383777/8641871.pdfIn PDF document text
  • http://files.newbusinessaccounting.co.uk/uploads/1/3/1/0/131070872/bibosujadegovawevo.pdfIn PDF document text
  • http://lefugupej.sophiapriolo.com/uploads/1/3/2/6/132695351/lekegubemo_sederapalage_josabor_bumavezew.pdfIn PDF document text
  • http://dexuno.pipinchicksilkies.com/uploads/1/3/0/8/130814328/napimosebaluluj.pdfIn PDF document text
  • http://files.toastygoat.com/uploads/1/3/0/8/130813898/e310a5f9b8d8a2e.pdfIn PDF document text
  • http://files.vickisoarart.com/uploads/1/3/1/4/131410479/girugifuni.pdfIn PDF document text
  • http://lefewaw.leegordonbuilder.com/uploads/1/3/0/7/130776745/dutenaxa_ropup.pdfIn PDF document text
  • http://files.susanlevi-goerlich.com/uploads/1/3/1/8/131856290/fojepuvadajov.pdfIn PDF document text
  • http://files.explusinc.com/uploads/1/3/1/6/131636886/disuvifoz_zezesolijusori.pdfIn PDF document text
  • http://files.trydesertsky.com/uploads/1/3/2/3/132303337/e9d1372.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000066fc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000066fc.bin)
  • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/2131762187.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3428/2654/files/29658492064.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/0243/0116/files/64643527844.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 extracted file (font_00_sfnt_off000066fc.bin)

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