Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://coretry.ru/uplcv?utm_term=stream+wonder+woman+2017 PDF link annotation

  • https://limblength-sldf.com/userfiles/file/mopegubebujunen.pdfIn PDF document text
  • https://codecs.ro/images/file/59189434102.pdfIn PDF document text
  • http://identik.hu/editor_up/xalugibivamebowip.pdfIn PDF document text
  • http://markasib.ru/ckfinder/userfiles/files/pizagaluwazipopuxuvagaf.pdfIn PDF document text
  • https://principesgs.com/userfiles/file/49580273957.pdfIn PDF document text
  • http://reelproductionshd.com/userfiles/file/vowidaz.pdfIn PDF document text
  • http://thrifthelp.com/flash/thrifthelp.com/file/tajatoleme.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/e3ta70ag3ehtdf2a1487u86bp4/jiwikenunizifipotifexex.pdfIn PDF document text
  • http://sydjpg.com/images/upload/file/20210916_041458_133.pdfIn PDF document text
  • http://travelshops.pl/userfiles/file/fuvivubapiminiridoli.pdfIn PDF document text
  • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/9445a3bdd1986ef21ddfe41504a63a59/99618198841.pdfIn PDF document text
  • http://metabolitplus.ru/files/file/rikisugotulazu.pdfIn PDF document text
  • http://cuacuonnhanh.vn/Images_upload/files/xazevusadosub.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/gumafojukopila.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc10580d65---83956387174.pdfIn PDF document text
  • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/pamalosazimepafeb.pdfIn PDF document text
  • https://www.tunnel.de/files/uploaded/file/gekipa.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/161420cdf68282---vulavudozubifodibepifetid.pdfIn PDF document text
  • http://namjapizza.com/app/webroot/files/zofijoxijetobabadasoser.pdfIn PDF document text
  • http://zawodydrwali.pl/app/webroot/userfiles/file/39281809810.pdfIn PDF document text
  • https://wroclawmodelshow.pl/ckfinder/userfiles/files/xefije.pdfIn PDF document text
  • https://epponline.com/mentorfinancial/page_images/file/55168855786.pdfIn PDF document text
  • https://ventsistem-bg.com/userfiles/file/40059140425.pdfIn PDF document text
  • http://montazerangroup.com/uploader/file/17615676925.pdfIn PDF document text
  • https://basalyemek.com/ckfinder/userfiles/files/xebaropetonez.pdfIn PDF document text
  • https://sportuna.be/ckfinder/userfiles/files/xokinoliwokodavexogata.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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