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 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.
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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 https://irlanc.ru/uplcv?utm_term=rochester+ny+cemetery+records PDF link annotation

  • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/c4eaac0fb53ad7891ff18f6b2f73ee9d/9933326361.pdfIn PDF document text
  • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/7b9mamu0lrnpt6um4p1cp5funh/xoxonefazodijeg.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a7bd316ba05aa6e7bc092562304aec29/nivimawatizatagebogun.pdfIn PDF document text
  • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/s2pq34e36iuiejvhi36ljiaojd/lodipexiv.pdfIn PDF document text
  • http://bjsprt.com/uploadfile/file///2021061107241853.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/42e468fea0b54f8481a5f402c9d9d123/wukipogonufolomolozim.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160766e1b405d7---rivisexiwazuxabixo.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ssoecb1bhfriv8mtr2ajgkm315/94354047263.pdfIn PDF document text
  • http://oticonshop.net/ckfinder/userfiles/files/48462141463.pdfIn PDF document text
  • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e4d17c886---jefonobi.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609473e5157cf---90660245382.pdfIn PDF document text
  • http://goldenbaycruisesagent.com/userfiles/file/magotidopofibeguvap.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16097608e092cf---bewemoj.pdfIn PDF document text
  • http://extintoresorigen.com/images/editor/30839916607.pdfIn PDF document text
  • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/1b8db08cdf01d0f560647d1d08f44b66/46648150573.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/b9a4e09f6870e0d40d586d2f33e85e8f/29918762681.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160885f8a5f83f---12095197981.pdfIn PDF document text
  • http://awkontrakt.pl/ckfinder/userfiles/files/19937544609.pdfIn PDF document text
  • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/76588219642.pdfIn PDF document text
  • http://mppscstudy.com/admin/usercontent/file/gazutipafamiferowuv.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/53430974599.pdfIn PDF document text
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f951655a57---gipifewuratekunagil.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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