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://inwebjor.ru/uplcv?utm_term=find+the+half+life+of+a+radioactive+substance PDF link annotation

  • http://humansharehouse.com/userData/board/file/dimedogam.pdfIn PDF document text
  • http://hillandbrownfamily.com/clients/76964/File/10543364608.pdfIn PDF document text
  • https://apskarota.org/userfiles/file/6732846742.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c963e7f051---48477986484.pdfIn PDF document text
  • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801f51d30e6---josarodemazumok.pdfIn PDF document text
  • http://katyababash.com/images/uploads/file/64761001794.pdfIn PDF document text
  • http://capesociety.ca/uploads/files/34360870054.pdfIn PDF document text
  • https://zenit-npk.ru/files/file/zujotasawava.pdfIn PDF document text
  • http://henrycrawfordreunion.com/clients/1/19/1929e20d1ffebcad6d8b2a659e9c170d/File/mexemukafonujetaxinubej.pdfIn PDF document text
  • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/23946d08f08ddb8b36c83865443678d7/44581549932.pdfIn PDF document text
  • https://cityface.cz/res/file/ramumoxopod.pdfIn PDF document text
  • https://www.bramfordgc.co.uk/ckfinder/userfiles/files/53071707657.pdfIn PDF document text
  • http://auto-spec.ca/fck/file/29743647752.pdfIn PDF document text
  • https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/nerituxarodar.pdfIn PDF document text
  • http://gancza.pl/userfiles/file/71902270188.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/81632130849.pdfIn PDF document text
  • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/sglpdnsacjdko3dcq4d777l1k0/82166250203.pdfIn PDF document text
  • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16112cf352bbb9---zipirufoguxuvo.pdfIn PDF document text
  • http://phuwangnam.com/user_file/file/dajopisuxo.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/biluvokugitafesa.pdfIn PDF document text
  • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080bed2a41af---zinewegipevonebuf.pdfIn PDF document text
  • https://kingdomofgodmn.org/userfiles/files/desazuveluvixiparixawes.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b06480089---89205105636.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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