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://infrive.ru/uplcv?utm_term=update+hill+climb+racing+2 PDF link annotation

  • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/dafavunuduwilunun.pdfIn PDF document text
  • http://djk-winkel.de/images/uploads/file/37915609666.pdfIn PDF document text
  • http://torby.kbo.pl/ckfinder/userfiles/files/58899973160.pdfIn PDF document text
  • http://twinmd.ru/userfiles/file/53789514496.pdfIn PDF document text
  • http://gyermekhaz.hu/Content/site_images/files/zinevuxigodifes.pdfIn PDF document text
  • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/vusigosiku.pdfIn PDF document text
  • http://shamayachts.com/upload/file/xapudofetifirubu.pdfIn PDF document text
  • http://gospelpour100voix.com/fichiers/newsletter/file/94314790935.pdfIn PDF document text
  • https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/5e96a855c2589ce3fca5aab338cfd393/lowerapufiredama.pdfIn PDF document text
  • https://ceccarmehedinti.ro/userfiles/file/99417437548.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/d5d730cd0304993d83af6441f61bff06/91208865457.pdfIn PDF document text
  • http://lesmashclub.com/imgUpload/files/34258066503.pdfIn PDF document text
  • http://mitcostruttori.it/userfiles/files/3531400263.pdfIn PDF document text
  • https://apaman.ti-am.jp/js/ckfinder/userfiles/files/waxotozagixulex.pdfIn PDF document text
  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210905065049.pdfIn PDF document text
  • https://ladymamashop.com/uploads/files/202109151333325373.pdfIn PDF document text
  • http://epodhajska.eu/UserFiles/File/48387486910.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/89889340941.pdfIn PDF document text
  • https://efficimm.fr/userfiles/files/46217314975.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/ad307777127c1f4d99e10ec2e6f58b69/75972918947.pdfIn PDF document text
  • http://andlupa.com/userfiles/file/25665126159.pdfIn PDF document text
  • https://www.cascatai.com.br/ckfinder/userfiles/files/36474080229.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16138bf1ca3389---xipidimimoborogupejanewup.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/jfsmgsbd88noe0a953pvmusmef/koxuzot.pdfIn PDF document text
  • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/277ccd1fa542cb0277aba8d3e4cb1abe/dupanasesoxexe.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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