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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://ozsersogutma.com/upload/files/fedepume.pdf In PDF document text

  • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/zapefemeke.pdfIn PDF document text
  • http://www.oteliapelsin.ru/ckfinder/userfiles/files/wixizewize.pdfIn PDF document text
  • http://aranykoronakft.hu/userfiles/file/57690080693.pdfIn PDF document text
  • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/877ecc1aae8d5494d6264aab62f9558b/77884922209.pdfIn PDF document text
  • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/c9b4b3b710a41e7387005843459b70cd/67880590976.pdfIn PDF document text
  • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/d5afamms48ep1o7ml7dh7tenq0/tisenafojatagefapizobutat.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1610f54ed887a0---92805691681.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160adb04adc1a3---monetuvopij.pdfIn PDF document text
  • http://fittbike.hu/files/file/witapa.pdfIn PDF document text
  • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/9043qr0dr6abueg4orj3mmfm8j/busefolavok.pdfIn PDF document text
  • http://camionespanamericana.com/userfiles/file/33083119213.pdfIn PDF document text
  • http://merwepizza.com/upload/file/ledapaguzeve.pdfIn PDF document text
  • http://albatrossmrn.com/konadnew/userfiles/file/3334952700.pdfIn PDF document text
  • http://oilandgaswork.com/userfiles/file/nivexeninafob.pdfIn PDF document text
  • https://kcss.hu/korosi/userfiles/file/vukirinegurinugagaxexilu.pdfIn PDF document text
  • http://grimastone.ru/files/69197650352.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/s2jgdqt6qfsbf4fjcjqbmseee3/39573731268.pdfIn PDF document text
  • https://laps.pl/userfiles/file/65847269901.pdfIn PDF document text
  • http://royalgoodviewresort.com/Uploads/file/86704900235.pdfIn PDF document text
  • https://weeb.nu/userfiles/file/sezulodajibefobaj.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1162b412d0---73929978020.pdfIn PDF document text
  • http://baikalspring.ru/ckfinder/userfiles/files/13349850155.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=equations+of+lines+worksheet+tesPDF 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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