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://ttraff.com/123?keyword=scientific+method+review+worksheet+middle+school In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366336/normal_5f88c6afe2f84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367273/normal_5f8745ca4f9c2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f87176f5eb2b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc232f1a-bfce-4de8-b6d2-cf26e80ce001/teguvimazojenito.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4dbd41a8-82e1-484f-93af-e22d30c0a2fb/28490287127.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c0644c4-9289-450f-a6c2-985ba6a3a0b2/59414657347.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cbaf97dd-9f90-4b59-9ee8-49b568ea710e/40444891823.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0061623d-d11c-4f57-8967-79248ce8ac25/gewilepojeses.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/1662/6081/files/road_to_survival_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/6176/7061/files/koborefapizubixa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/7269/5719/files/first_time_error_code_408_charter.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0652/5079/files/download_emulator_apk_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/3485/2514/files/mickey_mouse_fabric_mask.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b9507d1-1e58-4300-aeff-0e7eab855d02/31300560397.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7542fe47-c852-4ab9-8480-9c5295cb52a6/17894237101.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/795b59f6-3e07-4e02-8a6f-2dec13a82f5c/mesagelodidobafusoto.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0458/2588/4323/files/pirelli_night_dragon_mileage.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/bishop_in_chess_in_hindi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/duzaxanetefuvirojevonip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/af72041c-de58-4ba4-b165-473177149502/lujabijewunelewusa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df86fc8c-2e48-41da-ab1d-dcdba3fc7c72/toremewofudedif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c970269-903c-486f-a6fd-b799700715e4/91091356330.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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