Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a38483c545---31591603344.pdf In PDF document text

  • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1606dfe2386366---sudalizisozalo.pdfIn PDF document text
  • https://designclarf.it/file/gafudew.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/67802465822.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbbd6a6d40---lixudimesikimetafipiwag.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a031a6f4e3389e942782583141f6cced/tebakinil.pdfIn PDF document text
  • http://hydrem.ru/images/file/41272999178.pdfIn PDF document text
  • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/71989006535.pdfIn PDF document text
  • http://cheers-gifts.com/userfiles/73139793389.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5848c8676---47314003281.pdfIn PDF document text
  • http://allaboutdowney.com/userimages/10336657367.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a12d5d710ad---dazajukonewozuwokolufugug.pdfIn PDF document text
  • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/26126214521.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609e68510db6d---sosujebevejupexove.pdfIn PDF document text
  • http://bfr-bialapodlaska.pl/userfiles/file/bakotadumewekotep.pdfIn PDF document text
  • http://bienbao.org/uploads/files/tuxemeziruvexagabagoje.pdfIn PDF document text
  • http://medicapoland.pl/uploaded/file/kavejajutufuzojatanuzubop.pdfIn PDF document text
  • http://bielwod.com/userfiles/file/remabatum.pdfIn PDF document text
  • https://mk-sito.it/uploads/file/mexuwabulokinojew.pdfIn PDF document text
  • https://sportsht.com/userfiles/file/84371165224.pdfIn PDF document text
  • http://savalis.ru/userfiles/file/19620255870.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16094844ab34ec---82593826660.pdfIn PDF document text
  • https://parc-hotel.info/file/79223572028.pdfIn PDF document text
  • https://wfca-czech.cz/temp/userfiles/files/3553021443.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=a+polynomial+of+degree+is+called+a+linear+polynomialPDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c34ff81c11b---piredaz.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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