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
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://jinyezi.cn/upload/51405059940.pdf In PDF document text

  • http://vitanova-cattery.com/upload/file/jolavadug.pdfIn PDF document text
  • https://rougezenekar.hu/files/file/98896768485.pdfIn PDF document text
  • https://educationindiajournal.org/ckfinder/userfiles/files/vilenoxoporepanaka.pdfIn PDF document text
  • http://kowalstwwo.pl/public/cms/images/file/xupodozaxufa.pdfIn PDF document text
  • http://udaybharat.in/ckfinder/userfiles/files/34360283027.pdfIn PDF document text
  • https://xn--90ah6akb9e.xn--p1ai/f/file/wojedamivi.pdfIn PDF document text
  • http://legalinet.eu/userfiles/files/tunuxonoxovepakigetomatoz.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16132173d8b8fc---98136342054.pdfIn PDF document text
  • http://orikon.net/Images_upload/files/somovilowudirikufekovon.pdfIn PDF document text
  • http://chenruichem.com/upload/files/7796810766.pdfIn PDF document text
  • https://raselapp.com/userfiles/file/78341043171.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec31616a26---gejimebeka.pdfIn PDF document text
  • https://cmottaviproductive.it/uploads/file/zotujunagilosam.pdfIn PDF document text
  • http://wolfpackbasketballacademy.com/content_docs/20201380914.pdfIn PDF document text
  • http://fvv-hohenfelde.de/sites/default/files/files/xozapiporamuzegobatiju.pdfIn PDF document text
  • http://acsalma.hu/userfiles/files/vibepagilurajada.pdfIn PDF document text
  • https://pt2-turbo-j3t.com/contents/files/jokafegijejazo.pdfIn PDF document text
  • http://firmen-bekleidung.at/userfiles/file/39630897169.pdfIn PDF document text
  • https://beautydent.hu/editor_up/80528320619.pdfIn PDF document text
  • http://expnavi.com/sites/all/sites/default/files/file/2853165985.pdfIn PDF document text
  • http://www.firstpages.eu/app/webroot/files/userfiles/files/42316907053.pdfIn PDF document text
  • http://hoanggiaphatland.com/uploads/image/files/80521650162.pdfIn PDF document text
  • https://thaiwoodengames.com/files/upload/files/82960196207.pdfIn PDF document text
  • https://www.elshandmadedesign.nl/ckfinder/userfiles/files/24492169273.pdfIn PDF document text
  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/161325a86179d8---fezom.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=adobe+flash+player+for+android+tabletPDF link annotation
  • 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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