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/aws?keyword=acinetobacter+baumannii+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368489/normal_5f88fd503017f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366036/normal_5f86f91353c9e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379048/normal_5f8a2d85a544f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376382/normal_5f8c46921c139.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402501/normal_5f953d329ffdf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378157/normal_5f8b6fb5b5891.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384143/normal_5f908230578f5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372719/normal_5f89368092ccf.pdfIn PDF document text
  • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/6808592.pdfIn PDF document text
  • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/rorebidesaw.pdfIn PDF document text
  • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/1537d457a95e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000be86.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000be86.bin)
  • https://uploads.strikinglycdn.com/files/55355884-4593-4f09-aaf5-4f3cc7242535/24484970634.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e27b1d38-fdde-4411-954c-d3cf1b45e5de/tasobevozusimurigadinupe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a1b4f2b5-cece-4b6f-8e6a-7aaeda5b48e4/86927530515.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b7921c0-27f4-45a7-9f25-8069265fadb4/rise_of_the_runelords_handouts.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca6ac7b5-b5f8-4706-b1e7-912f6888bd90/hatchet_by_gary_paulsen_audio.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/6898/3969/files/compound_sentence_worksheet_for_grade_4.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4329/8207/files/jesawagon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/bowers_and_wilkins_panorama_2_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/fizup/16457618976.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/digital_electronics_lab_viva_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/ronimowopevasebefiwim.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_off0000be86.bin)

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