Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafffi.ru/123?keyword=yu+liu+md PDF link annotation

  • https://suvenalopevoku.weebly.com/uploads/1/3/4/5/134510495/b5c5a8f28ad129.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/b2cc573e-7de0-44fe-a920-98aa683ab679/dino_crisis_2_pc_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1e32187-3398-463f-92a0-88c6b40b31d2/81401369897.pdfIn PDF document text
  • https://s3.amazonaws.com/pujirageg/loxodudinapezadedajero.pdfIn PDF document text
  • https://s3.amazonaws.com/zevutebulaworel/vomedive.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d5e397d4-323b-4169-85b9-4b084bf4a38a/henry_clay_frick_house.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/390c767f-3474-4670-91d4-f671f625f2ae/better_business_by_solomon_5th_edition.pdfIn PDF document text
  • https://s3.amazonaws.com/bajuse/visual_boy_advance_games_download_for_pc.pdfIn PDF document text
  • https://s3.amazonaws.com/wupiwupiwot/tagevikazeponom.pdfIn PDF document text
  • https://s3.amazonaws.com/gulapore/79381786309.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/aortic_aneurysm_ultrasound.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/05c6cf60-b0ab-4d92-bbd6-04d8a35f0cef/tube_tycoon_hack.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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