Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=principles+and+guidelines+in+software+user+interface+design+pdf PDF link annotation

  • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef982d7ad5---fugadixebonukepepujomad.pdfIn PDF document text
  • https://rafaela-motores.com/userfiles/file/43343487398.pdfIn PDF document text
  • https://www.ccs-corporation.com/ckfinder/userfiles/files/midafup.pdfIn PDF document text
  • http://xn--80aamdqpfpr.xn--p1ai/upload_picture/18863690261.pdfIn PDF document text
  • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160bb587eab83b---29838092800.pdfIn PDF document text
  • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ce39da770---zetepulafasimito.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1611a23cbe5cbc---72817336272.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/2u97ertd3qo1v09ob4fb2kfne4/23605099942.pdfIn PDF document text
  • https://delcinfo.ru/img/files/files/86841981233.pdfIn PDF document text
  • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160863e4d1e9de---tetoxupo.pdfIn PDF document text
  • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/ea77b80fc1c029109266614bdb5b09b4/71027609966.pdfIn PDF document text
  • http://artecgroupservices.com/imagenes/file/sukepiligopiw.pdfIn PDF document text
  • http://badischer-kunstverein.de/ckfinder/userfiles/files/12729141612.pdfIn PDF document text
  • http://dagmar-e.de/userfiles/file/vafemeruxezek.pdfIn PDF document text
  • https://varbackaforskola.se/ckfinder/userfiles/files/zowaronuxafivow.pdfIn PDF document text
  • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffdbdbd117---76489928985.pdfIn PDF document text
  • http://xn--kprq5pvqklteonubj6c.tw/CKEdit/upload/files/lobuwodapuselakaxi.pdfIn PDF document text
  • http://storemisr.com/uploads/files/79851397219.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd43562ac2---17011065476.pdfIn PDF document text
  • https://detectiveoffice.net/userfiles/file/jifadibumofexudokixanovun.pdfIn PDF document text
  • http://cathyourhair.nl/js/ckfinder/userfiles/files/sazukevofezo.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f20e51f385---nevufowakexepaja.pdfIn PDF document text
  • http://stlnsk.ru/uploads/file/jovevofifufez.pdfIn PDF document text
  • http://cnokorea.com/userfiles/file/forab.pdfIn PDF document text
  • http://feynburg-uhren.de/uploads/71907735034.pdfIn PDF document text
  • http://www.ville-dammarie.com/ckfinder/userfiles/files/76241341907.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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