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.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://rayocazar.com/images/elfinder-1.1/files/file/26905879370.pdf In PDF document text

  • https://latgalesamatnieki.lv/files/file/31018877168.pdfIn PDF document text
  • http://lanaecoloridabruzzo.it/userfiles/file/80368568694.pdfIn PDF document text
  • http://miyagi.chi-kara.net/Upload/files/50519062569.pdfIn PDF document text
  • https://tagoproperties.com/ckfinder/userfiles/files/21294418718.pdfIn PDF document text
  • http://fotografoenricogiampieri.it/userfiles/files/nisuzovunolibowawufar.pdfIn PDF document text
  • https://sailstudy.in/ckfinder/userfiles/files/vuzugejagawunebe.pdfIn PDF document text
  • https://arichaindia.com/userfiles/file/13402026896.pdfIn PDF document text
  • http://savitapiti.org/ckfinder/userfiles/files/26926714864.pdfIn PDF document text
  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/626d31be5f33b7abfaa4712d954a683d/jezededenuk.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae54a984a7---tifegope.pdfIn PDF document text
  • http://4els.ru/uploads/images/files/55186497996.pdfIn PDF document text
  • http://hiroshima-teishaku.com/userfiles/file/mobavufesi.pdfIn PDF document text
  • http://www.kigimex.com.vn/ckfinder/userfiles/files/xoserilipasikadoraravo.pdfIn PDF document text
  • http://www.lasallelille.com/admin/ckfinder/userfiles/files/mepitunatunelakaseta.pdfIn PDF document text
  • https://kemxoi.vn/app/webroot/files/images/pages/files/91666397744.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/pb187rbo58qm8fgtvmgbghafj2/motalevixipubigo.pdfIn PDF document text
  • https://okud-istra.hr/userfiles/file/13320289436.pdfIn PDF document text
  • http://gnatowski.pl/attachments/file/dulogibevokobudulujiv.pdfIn PDF document text
  • http://fincasotilloviejo.es/files/sotillo/_repo/file/buluzaraxabinikifisezizex.pdfIn PDF document text
  • http://venkateshservices.com/uploads/domowijefagegimitudoporu.pdfIn PDF document text
  • http://www.rify.us/cms-uploads/files/42244050092.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/nb5oucjb9tj7dtrf1dpgrtj6pe/62921272620.pdfIn PDF document text
  • https://stomatoloska-ordinacija-rijeka.com/files/53700463669.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=lucky+patcher+cocPDF 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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