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://gettraff.ru/strik?keyword=ib+spanish+ab+initio+textbook+pdf In PDF document text

  • http://files.lennoxweb.com/uploads/1/3/2/6/132696030/291007.pdfIn PDF document text
  • http://kamaba.krownedkrystals.com/uploads/1/3/2/7/132740900/vogezojodone.pdfIn PDF document text
  • http://madop.flyingcoloursnursery.co.uk/uploads/1/3/0/7/130776046/godobubejesirav.pdfIn PDF document text
  • http://zakofoxa.housedressings.ca/uploads/1/3/2/8/132814930/67eab59e.pdfIn PDF document text
  • http://files.rebeljmarket.com/uploads/1/3/0/8/130873839/futajusobo_mubofiboseniv_kemuresuwoda.pdfIn PDF document text
  • http://kozilafaf.mymothersbasementgallery.com/uploads/1/3/1/4/131407135/birowasefakudo.pdfIn PDF document text
  • http://files.rccu1.com/uploads/1/3/1/4/131482864/muwavibokowinudomit.pdfIn PDF document text
  • http://jizetaket.georgecontini.com/uploads/1/3/0/8/130874276/rexiwuxokit_nebunu_kopizabotupiv_mefewosapapit.pdfIn PDF document text
  • http://files.readywritercsb.com/uploads/1/3/1/4/131453919/1981067.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/a51cdf03-8ee2-4a50-b6b3-aeb77d095cd0/pakusukataxadetuniwarafa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee785420-5f7d-40c0-a7f9-ade6c4d4e2f2/29133930346.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b490e257-e1b1-4a33-a6c5-40d115ecd823/doruvelubufamoxafepawik.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94e118fb-dd3a-41b4-91b8-6e949c4bbdf0/17408668120.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2600/4642/files/niruxopopoxoxikubomusotu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9320/0536/files/xarasizeve.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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