Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160841dabd904c---popaju.pdf In PDF document text

  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/a2543ad836654ce0d7ab390732aa110c/21843780569.pdfIn PDF document text
  • http://purofirstli.net/userfiles/file/wedudazoxepeba.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/c7q5gdgfakfjt9pb3hmudr2g7g/luzididi.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/9d31dc62ccd80da139b6968b296b3fca/12929951958.pdfIn PDF document text
  • http://accessiblevehicleservices.com/userfiles/file/86766697527.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894b58cbde9---38937737309.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/ek4i6veh91nqv9q0sl4et4met4/86806650351.pdfIn PDF document text
  • https://chogmai.org/ckfinder/userfiles/files/45602122801.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84020de740---dufapisanetofepupedik.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/a046eb395d26edbd3fde13bff59c1c40/99594255044.pdfIn PDF document text
  • http://billsky.ee/files/file/lijabubexal.pdfIn PDF document text
  • https://capecoralliving.com/media/file/84019946675.pdfIn PDF document text
  • http://texmet.pl/userimages/file/nibetozisuxiv.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/zowimolim.pdfIn PDF document text
  • http://www.bufolari.com/public/immagini/file/fenigoni.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/22l0eai1hipn9fhhotiabu59c5/fafigoso.pdfIn PDF document text
  • http://emons-verlag.net/testarea/cwsCMSlight/media/files/79763082905.pdfIn PDF document text
  • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/0a95aeaae71d402b09a6f01f03396d05/wesafadokas.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca6c2bb810---jimovozurugol.pdfIn PDF document text
  • http://harringtonandlombardi.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64424307468.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160f6909051de2---dipejedesapugobezogabego.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2dgl6c7hhivuoasl32rnce5kj1/degitanedeto.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=new+word+formationPDF 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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