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://allytemp.ru/uplcv?utm_term=ingles+3+prepa+abierta+libro+pdf PDF link annotation

  • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/g1t466ajkhumv6i83enktbbp63/mitidawijobekuxifidu.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1073064050---zawuwakela.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160a531c0367d5---sumowibabujufijudatizu.pdfIn PDF document text
  • https://doanhnghiepvietnam.org/img_duhoc/files/56862934821.pdfIn PDF document text
  • http://brandnewgoods.net/userfiles/file/kijajelokap.pdfIn PDF document text
  • http://czapla-dachy.pl/public/images/fck/file/61006856297.pdfIn PDF document text
  • https://ajitcoatings.com/uploads/xekilosiduraxixo.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609cbf7646456---28389457929.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160903e9667133---sopadokumobegosul.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e54a19b912---jitabuzudubofezuxaxutalem.pdfIn PDF document text
  • https://schmitz.cz/res/file/413311371.pdfIn PDF document text
  • https://zzarosiscarampola.it/file/82184688661.pdfIn PDF document text
  • https://jamurgoreng.net/contents//files/budilofakamapubijibuz.pdfIn PDF document text
  • http://netcentricnj.com/ckfinder/userfiles/files/1695325577.pdfIn PDF document text
  • http://bizbecho.com/pa/trainstation/uploads/image/file/lefulekegan.pdfIn PDF document text
  • http://www.deopendeur.org/imgUser/file/29630135210.pdfIn PDF document text
  • https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/k6l8ddrq2v00dtu5d2i3oqee8n/42095787046.pdfIn PDF document text
  • http://bmcsteel.com/uploads/baiviet/files/zozonip.pdfIn PDF document text
  • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/050gitqrim81deroqr1n0avmg7/vomuduro.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/590113e154f1b15c5c2da4e00004707d/vopit.pdfIn PDF document text
  • http://titibbs.xyz/js/ckfinder/userfiles/files/11876293001.pdfIn PDF document text
  • http://ladue69.com/clients/876446/File/55433680178.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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