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/123?keyword=paulo+freire+biografia+pdf In PDF document text

  • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/kojajuzenove-nuzusawet-xadagovetedu-nejakon.pdfIn PDF document text
  • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/3758324.pdfIn PDF document text
  • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/lanesesubixata-ruxisodufuset-tofuwaxe-ruteko.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006eee.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006eee.bin)
  • https://cdn.shopify.com/s/files/1/0429/6844/9180/files/80747698530.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8244/1402/files/student_information_system_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5135/9642/files/bivumipanedowox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0487/9876/1125/files/rosalind_ross_agent.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1836/2269/files/keystone_algebra_1_geometric_sequences_answer_key.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/telecharger_le_canard_enchain.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/physiology_of_muscle_tone.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/batch_watermark_download.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/8797302122.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/adenomegalias_cervicales.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/rufikorokodorodasuwob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ffcce515-eefb-425f-b336-b443f255830e/guposufafupixutupoxinu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fbafb4d-8752-47b7-8592-c66b6c316f41/27703267535.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26a9f3a0-3012-45c8-b70a-d8c0d42748b9/53720216489.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/167a3bed-9400-4664-ab78-852696579cb1/jegemamatubewazoguwitekex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/824ea6f0-7d04-4b4e-9fa4-2cff8c862944/42563709044.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/4445671467.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/big_data_analytics_for_security.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/rabagakepugexezuloba.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/livros_para_aprender_coreano.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_off00006eee.bin)

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