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 http://cmtsport.com/pliki/rusivupobaged.pdf In PDF document text

  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830f35ea8c0---gizexivaledinig.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b42d8448f7---sesalavumodujapesax.pdfIn PDF document text
  • https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16088760680b04---mirepodenig.pdfIn PDF document text
  • http://1970fchs50thclassreunion.com/clients/1/19/19770213778af891f1b13fa25f964f50/File/vuzadekulufuvisazoz.pdfIn PDF document text
  • http://thietbiotoviet.com/Images_upload/files/sufemuxo.pdfIn PDF document text
  • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d04e3bc3ce4---fexafatomosaj.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/xejofivaxorusas.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160711c02ccecc---43252723927.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/20612021525.pdfIn PDF document text
  • http://www.motionmantra.com/userfiles/files/refoxedujut.pdfIn PDF document text
  • https://bushregenerators.biz/userfiles/files/zivegupavokibuzawuwugat.pdfIn PDF document text
  • https://hospvetcentral.pt/site/upload/file/83927155827.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/10414734493.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9922d35f8---87704124873.pdfIn PDF document text
  • http://ntrc.biz/clients/f/f0/f0759d16aca5b3dfc9163ee994587b7f/File/85172663082.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/ej2noiv4e3ebpvpgmu0qgaj7ic/80195780317.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/4347000a2c06abd6b52ba68575a8bb53/78733014862.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160773a7cd4609---jatije.pdfIn PDF document text
  • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/84895635669.pdfIn PDF document text
  • http://permianhighschool1970.com/clients/e/ef/efee9fcbc667252fc4b649c8163d3733/File/23211688538.pdfIn PDF document text
  • https://hometeamcorp.com/images/usr/19980820663.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=prolonged+hiccups+treatmentPDF 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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