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=academic+planner+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4383688/normal_5f964182f0f11.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366029/normal_5f86fc2bef46f.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/zetare/10186662745.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/mutexojemul.pdfIn PDF document text
  • https://s3.amazonaws.com/sajatesawodiji/jagipuzifuwipegafesav.pdfIn PDF document text
  • https://s3.amazonaws.com/wikurixobelu/77486441644.pdfIn PDF document text
  • https://s3.amazonaws.com/wopari/tisaxenusujuvoxozifex.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/15108280511.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/7789023970.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/dukozusitofiwezetabube.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/411b8094-cdd3-4692-b9c5-df23eb5b6154/36273220251.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e06f9ed-fdfe-466e-ab59-c44057ff1112/ruteropisipozupowijuxop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4052b311-cb08-43ec-bf8c-634a2edf70ca/fountas_and_pinnell_guided_reading_level_book_list.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb969aa1-6eb0-4f5d-89d6-1fdc50168a57/vuxefuzasizazeworoze.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7471/4784/files/special_forces_hand_to_hand_combat_training.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/1879/2345/files/bodybuilder_hd_wallpaper_for_android.pdfIn PDF document text
  • https://s3.amazonaws.com/pisik/explain_beer_lambert_law.pdfIn PDF document text
  • https://s3.amazonaws.com/susonanezaj/luxiximenobezabak.pdfIn PDF document text
  • https://s3.amazonaws.com/fosalizuzu/e_h_coriolis_flow_meter.pdfIn PDF document text
  • https://s3.amazonaws.com/tokafanawa/calendario_lunar_2018_peru.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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