Malicious PDF — malware analysis report

Heuristics 7

• 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 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://krisoc.ru/uplcv?utm_term=which+molecule+will+not+exhibit+in+hydrogen+bonding+between+its+molecules PDF link annotation

  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6e8daf0666---jemezuwuxobam.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b518df625e3---xepugovuzoroposit.pdfIn PDF document text
  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609df7b357e23---basonesofenalipemibat.pdfIn PDF document text
  • https://dondepodemosir.com/userfiles/file/43846664700.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfd2c9d51c---sajoloxafozupotef.pdfIn PDF document text
  • http://wsmr.us/userfiles/file/kupiwubamuwaxabut.pdfIn PDF document text
  • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/2fd95872ceb5c0ec2a77525ecd8f012f/zerezakedusixanisonub.pdfIn PDF document text
  • http://yangs-ns.com/ckfinder/userfiles/files/20210623105616.pdfIn PDF document text
  • http://salt17.com/userfiles/files/96201916538.pdfIn PDF document text
  • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075bace92036---46233690589.pdfIn PDF document text
  • https://bestcoloringpages.com/userfiles/file/luwogaba.pdfIn PDF document text
  • http://gasnguyenanhst.com/js/ckfinder/userfiles/files/kofowufodiwut.pdfIn PDF document text
  • https://anukulagrotech.com/userfiles/file/45523474373.pdfIn PDF document text
  • http://skncn.com/u/files/maduna.pdfIn PDF document text
  • https://amitadevnani.com/userfiles/file/telokavusitobekodafil.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/watinuwekujo.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/sovukamipasimujezopu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f95664748---gabobuluwi.pdfIn PDF document text
  • https://serka.com/serka/upload/files/zosenulupozazikisub.pdfIn PDF document text
  • http://glotecgh.com/upload/editor/file/goxetipo.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a94dbd886a2---voluvuworuv.pdfIn PDF document text
  • http://msinziniering.com/userfiles/file/xebagizidujem.pdfIn PDF document text
  • https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/pabuma.pdfIn PDF document text
  • http://tischtennis-kiel.de/images/file/bamuwugilut.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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