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.
• 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://pistant.ru/uplcv?utm_term=developmental+biology+10th+edition+free+pdf PDF link annotation

  • http://industrialdevices.in/uploads/43812122036.pdfIn PDF document text
  • https://cesiedizioni.com/userfiles/file/67785068047.pdfIn PDF document text
  • http://stsmcc.org/www/js/ckfinder/userfiles/files/fewavofo.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94745ed5e3---tusafugo.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093c4af6aae6---14518647786.pdfIn PDF document text
  • http://bajcsidavidfoto.com/_user/file/80797798828.pdfIn PDF document text
  • https://nolimitscenter.be/peausitive/images/FCKeditor/file/46596614468.pdfIn PDF document text
  • https://alistairmills.com/ckfinder/userfiles/files/joxavebaxal.pdfIn PDF document text
  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160f0707970b86---fosiposu.pdfIn PDF document text
  • http://aite-materials.com/upfiles/file/7400690880.pdfIn PDF document text
  • http://adams-gold.ru/archive/image/file/fixamol.pdfIn PDF document text
  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/effcac5a5ce3601ea421d18105facdaf/10826924527.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/ab427135890f71aca6018302136e49fa/mobotetig.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe5ede91aa---40443295394.pdfIn PDF document text
  • http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/72671042374.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/qn4v473iccrhp1v0iaqm5l3122/22159955927.pdfIn PDF document text
  • https://hkbca.org/UploadFiles/file/20210723085601159.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16081311f44a7a---94147207099.pdfIn PDF document text
  • http://baltic-rt.ru/ckfinder/userfiles/files/dududibagafefapu.pdfIn PDF document text
  • https://hpsoft.shop/upload/files/20859190153.pdfIn PDF document text
  • http://rc-modeller.se/images/file///dafewifoxus.pdfIn PDF document text
  • http://saovietgroup.com/upload/FCK/file/51164527965.pdfIn PDF document text
  • https://next-engineering.com/userfiles/files/39598439277.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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