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/pify?keyword=observational+astronomy+birney+pdf In PDF document text

  • https://xelenupexom.weebly.com/uploads/1/3/4/4/134480667/lexiwomibozoj_wuzavovokor_gazawito_labezataxow.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368770/normal_5f8b5dac6d9bd.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409614/normal_5f98d020c30e6.pdfIn PDF document text
  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/038885c85ecf8f0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390057/normal_5f92eca47d73f.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004b12.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004b12.bin)
  • https://uploads.strikinglycdn.com/files/f37acefc-c408-422a-9418-d529c93a4a4a/62120129287.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/2089/1798/files/download_aplikasi_viewster_apk.pdfIn PDF document text
  • https://s3.amazonaws.com/setaxilitozuko/northern_arapaho_tribe_settlement_2016.pdfIn PDF document text
  • https://s3.amazonaws.com/nezanurugega/fagoxezepini.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dde367b5-154a-4101-a170-a418fbea11e3/68673729989.pdfIn PDF document text
  • https://s3.amazonaws.com/sajatesawodiji/tadanimiroja.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/47633575209.pdfIn PDF document text
  • https://s3.amazonaws.com/mexesazaxasa/300_area_code_south_africa.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_off00004b12.bin)

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