Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• 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 https://coretry.ru/uplcv?utm_term=my+hero+academia+english+dub+free+online PDF link annotation

  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/lgv3h1hm0ugrgi37bn8n0us4fs/doxarosaruj.pdfIn PDF document text
  • http://www.keizerco.nl/userFiles/file/noxogojipopizijubuk.pdfIn PDF document text
  • https://larrialdiak.es/files/galeria/files/vofopufed.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371902a2796---litunodetafovukosatalijik.pdfIn PDF document text
  • http://pizzeriagiganti.ro/imagini_ws/42381202834.pdfIn PDF document text
  • http://one9five.com/userfiles/files/gejekubagajokatuxegajup.pdfIn PDF document text
  • http://lexus-custom.com/js/upload/files/barikakuminanofuze.pdfIn PDF document text
  • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130fdf509e5e---5748078264.pdfIn PDF document text
  • https://balticstroy.com/uploads/files/jezirifuged.pdfIn PDF document text
  • http://numere-mopede.ro/mm/file/51422261513.pdfIn PDF document text
  • http://sandsflooring.co.uk/ckfinder/userfiles/files/lifawemafewisapa.pdfIn PDF document text
  • https://yarpaket.ru/userfiles/file/fujerowofuwiwi.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffdf0d16bd---58942864522.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/43ca291813c21b373ebdbf4360488174/xivufekazubekavo.pdfIn PDF document text
  • http://drapa-technika.cz/UserFiles/File/8050756436.pdfIn PDF document text
  • http://eprdel.cz/userfiles/file/37294457695.pdfIn PDF document text
  • https://poganyvolgyi.hu/userfiles/file/fagazugikufik.pdfIn PDF document text
  • https://lingchuanfloor.com/app/webroot/userfiles/files/3987802416.pdfIn PDF document text
  • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413973f1d83---14943846752.pdfIn PDF document text
  • http://naitikfashions.com/ckfinder/userfiles/files/gagaziwoxakijusa.pdfIn PDF document text
  • https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/57679857742.pdfIn PDF document text
  • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16133cecc23fd2---21209146410.pdfIn PDF document text
  • http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/najajek.pdfIn PDF document text
  • http://kustari.net/userfiles/file/31205319925.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/1895a6ii24j6c9fav8np0059i1/fowunomagomapuxudujatuke.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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