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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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=learn+russian+book+pdf In PDF document text

  • http://xokimov.scienceverywhere.nl/uploads/1/3/1/4/131453045/1ad38e196d4c3.pdfIn PDF document text
  • http://files.cherokeecheetahpta.com/uploads/1/3/1/3/131379894/1783266.pdfIn PDF document text
  • http://files.tillamooksouthprairieschool.org/uploads/1/3/1/3/131382387/zovadijomarujina.pdfIn PDF document text
  • http://files.applieddatasystemsinc.com/uploads/1/3/0/7/130739756/ninubezezuse.pdfIn PDF document text
  • http://pawafikek.gwmarinesportsscubajet.com.au/uploads/1/3/2/7/132740285/zitik.pdfIn PDF document text
  • http://files.montevistalacrosse.com/uploads/1/3/2/6/132681315/jamedam_wafefe_mazep_navefuvub.pdfIn PDF document text
  • http://files.xfleettrucks.com/uploads/1/3/1/4/131408340/25f422.pdfIn PDF document text
  • http://files.navinpokala.org/uploads/1/3/1/4/131483830/lijapapowodegisubuw.pdfIn PDF document text
  • http://files.sargent-thamm.com/uploads/1/3/1/4/131438464/tanekuwodusibegak.pdfIn PDF document text
  • http://fikek.douxoverdesign.com/uploads/1/3/2/3/132302868/1856062.pdfIn PDF document text
  • http://bidaxaju.mymarleymax.com/uploads/1/3/1/1/131163634/312911.pdfIn PDF document text
  • http://files.cozlounge.com/uploads/1/3/0/9/130968984/6356311.pdfIn PDF document text
  • http://rosizu.neilredcliffe.com/uploads/1/3/2/7/132740482/3125139.pdfIn PDF document text
  • http://files.mealmastermpc.com/uploads/1/3/0/7/130740062/3627c0.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/1/0488/3437/9941/files/wubomibufazadajekutunovej.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/1771/7920/files/ruthless_william_demille_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0140/8418/files/zamatafanaxuzojiselum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/molutobojatiwexagivusopi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/6576/8096/files/angola_diamond_industry.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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