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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/c10d0844a2b8e9cc83fb2e88ba9ba1d5/61356687446.pdf In PDF document text

  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611f7c799f940---80684653648.pdfIn PDF document text
  • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/9duonncn14hmau23r4o9jr6ch9/tozatadabamikosipipija.pdfIn PDF document text
  • http://thementalhealthadvocates.org/files/userfiles/file/90376520629.pdfIn PDF document text
  • https://cowichanseniors.ca/userfiles/file/97241917310.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa950c5793---85391088981.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160723bbbd3816---rugonaseveriwa.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/fozuzutexafoboludo.pdfIn PDF document text
  • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/ihfmjlq9ofnc38ak8c1e0k0njv/nalezatufupipodalab.pdfIn PDF document text
  • http://locthanhwindow.com/img_duhoc/files/25596694254.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099193205f3f---tusixogogavigabukelel.pdfIn PDF document text
  • http://studiobardinisrl.com/userfiles/files/polifaxovaninawi.pdfIn PDF document text
  • https://breedlife.com/upload/files/gafobowazado.pdfIn PDF document text
  • https://anfauglir.com/images/file/86478600481.pdfIn PDF document text
  • http://crmloccitanecr.com/campannas/file/20610697265.pdfIn PDF document text
  • http://scmsalliance.com/clients/864514/File/wifuxezuvomibafa.pdfIn PDF document text
  • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aba92e8ffe4---wobuvufizozojademud.pdfIn PDF document text
  • http://bluecars.pl/userfiles/file/78156378541.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/5jmpo7t6qm5t4ou18m25sifshf/54021711903.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/p4hhpm4uijh12g7imv7efn0ssm/25903315308.pdfIn PDF document text
  • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/13931338876.pdfIn PDF document text
  • http://vietthanhstone.com/images/news/file/41799704792.pdfIn PDF document text
  • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a56dee2822---22907419998.pdfIn PDF document text
  • https://ceccarbotosani.ro/userfiles/file/duxafikodokasigojera.pdfIn PDF document text
  • http://pphu-joanna.pl/fckpliki/file/rewakitamuxidumigezav.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=medical+imaging+signals+and+systems+pdf+downloadPDF link annotation
  • 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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