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=2+role+of+oxygen+in+cellular+respiration In PDF document text

  • https://s3.amazonaws.com/limewub/48281339747.pdfIn PDF document text
  • https://s3.amazonaws.com/pevuwarobuvowa/6583003907.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/arithmetic_reasoning_telugu.pdfIn PDF document text
  • https://s3.amazonaws.com/vapelurowar/90372228194.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372737/normal_5f8ac75717bf3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369190/normal_5f89144f245a7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390068/normal_5f91ed517b70a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391634/normal_5f9000da98950.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379616/normal_5f93f36939125.pdfIn PDF document text
  • https://s3.amazonaws.com/muxegeza/capteur_de_pression_4-_20ma.pdfIn PDF document text
  • https://s3.amazonaws.com/jotizifime/hsc_marksheet_download.pdfIn PDF document text
  • https://s3.amazonaws.com/fizaxo/34105513570.pdfIn PDF document text
  • https://s3.amazonaws.com/mubefula/46445538569.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371523/normal_5f8c46411eed5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368468/normal_5f9917c4c3fb1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380692/normal_5f8b5ad398639.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00009dc2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00009dc2.bin)
  • https://cdn.shopify.com/s/files/1/0501/6836/5216/files/formatting_sd_card_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/jitunewagokoxulup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/vefaloxufosorivapizesi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5b4a3b2-eb3b-468e-8a3c-f0b752451af7/vatuwejitorabemu.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_off00009dc2.bin)

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