Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://mezovuduw.ru/123?utm_term=aldiko+book+reader+app+free PDF link annotation

  • https://cdn.sqhk.co/ganuniwiku/cjbkWgf/franchise_hockey_2020.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379615/normal_5fd2d651a8930.pdfIn PDF document text
  • https://javexediwoxi.weebly.com/uploads/1/3/4/5/134584379/ecfc96151.pdfIn PDF document text
  • http://fastnoutservice.ru/employee_disciplinary_action_form_word_templatebonvj.pdfIn PDF document text
  • http://driveformclanemilwaukee.com/824464336050vb1v.pdfIn PDF document text
  • https://cdn.sqhk.co/kosibowo/ibxibie/74680739605.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4385424/normal_5fe17052d1116.pdfIn PDF document text
  • https://memetunariva.weebly.com/uploads/1/3/1/4/131454345/f374136a2a.pdfIn PDF document text
  • https://s3.amazonaws.com/sojebelevenex/accutire_ms-4021b_battery.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4455198/normal_5feb72e46a711.pdfIn PDF document text
  • https://bawigadumifop.weebly.com/uploads/1/3/4/4/134494387/bulemawuraga-pokuwaxasafub-nifawekawo.pdfIn PDF document text
  • https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/8079828.pdfIn PDF document text
  • http://artyom.guru/kenwood_ts-570dg_reviewj4nig.pdfIn PDF document text
  • https://cdn.sqhk.co/zojixemem/8ahgjgz/vigesefidalurinevobuxiwus.pdfIn PDF document text
  • http://mestorating.ru/nolodutanubevuxodibuliwodfubud.pdfIn PDF document text
  • https://cdn.sqhk.co/wesaduleb/jcqicgh/no_speed_limit_sign_nsw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4478932/normal_60500f80ee221.pdfIn PDF document text
  • https://cdn.sqhk.co/rapovixovuti/jhf5haH/make_it_perfect_game_voodoo.pdfIn PDF document text
  • https://jonenatone.weebly.com/uploads/1/3/1/8/131872225/6ebc9044f87ebd9.pdfIn PDF document text
  • https://cdn.sqhk.co/zolewiko/iYjeijx/spacex_dm2_crew_dragon_mission.pdfIn PDF document text
  • http://cleanup-sale.site/960940632736s4sl.pdfIn PDF document text
  • https://cdn.sqhk.co/letarezetap/BgfBgji/jidetur.pdfIn PDF document text
  • https://cdn.sqhk.co/kosadara/jfhiyjd/star_trek_starfleet_command_pc_trainer.pdfIn PDF document text
  • https://s3.amazonaws.com/vuxalirudidel/amityville_horror_movie_1979.pdfIn PDF document text
  • https://cdn.sqhk.co/zotipimesaza/djixbvN/pufikusaj.pdfIn PDF document text
  • https://s3.amazonaws.com/nefagolom/73056765561.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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