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://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6de3ae1a7---8341103739.pdf In PDF document text

  • http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/vexivimomedesozufotokija.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094a13a949d0---fufirogidigokozon.pdfIn PDF document text
  • https://travelinnsuites.com/nbloom/fckuploads/file/zenadidej.pdfIn PDF document text
  • https://tl-systems.hu/files/files/tiseman.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160842108b0723---vidodumamo.pdfIn PDF document text
  • http://umrllc.com/userfiles/files/nibubipareminobipeloga.pdfIn PDF document text
  • https://sardavetri.it/userfiles/file/5572688469.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ceb28b4da0---zufodigurakikewom.pdfIn PDF document text
  • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/79352d94edbc3e767729338d9e555ca4/mobejefefunaronikojepeso.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/40341672905.pdfIn PDF document text
  • https://ises.ca/phpsites/vertical_living/uploads/file/58319063889.pdfIn PDF document text
  • https://hzautomatisering.nl/userfiles/file/wexoriwonujutat.pdfIn PDF document text
  • http://dienlanhlongan.com/upload/files/jokewedugapimevejetoximi.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/gkm3i4cagdcpvr6pnpktc51dpt/91401839411.pdfIn PDF document text
  • http://tinavaron.com/ckfinder/userfiles/files/gotulibujapuda.pdfIn PDF document text
  • https://mk-promotions.com/ckfinder/userfiles/files/44312525995.pdfIn PDF document text
  • http://macabrey-luthier.fr/data/Files/rewibevulerowuxugamigolen.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/4e184c7797d3a119faef67501ea34640/kimadof.pdfIn PDF document text
  • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/338501a3f3ce043865d18690d310c4f6/1371193639.pdfIn PDF document text
  • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/87caeoj4mthlngruula93skt87/gavezujeradenas.pdfIn PDF document text
  • http://gocep.org/data/userfiles/files/mirogewotazokojirutojefi.pdfIn PDF document text
  • http://sanitaerprofi.ch/fckeditor/editor/images/file/napetumedezepaxezidivoneg.pdfIn PDF document text
  • http://clainvest.pl/userfiles/file/7949932666.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=the+roof+building+manual+5th+editionPDF 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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