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://konikanarrowfab.com/ckfinder/userfiles/files/84540680660.pdf In PDF document text

  • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/67058023712.pdfIn PDF document text
  • http://stark-tools.ru/images/uploaded/1820471292.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613389dd65748---tobujajipe.pdfIn PDF document text
  • http://problemconsulting.com/img/download/files/dagidigomu.pdfIn PDF document text
  • http://www.clc-engineering.com/siteuploads/editorimg/file/dofevot.pdfIn PDF document text
  • http://yongchengtech.com/uploads/files/202109081510137817.pdfIn PDF document text
  • http://35ct1.com/images/ckImageFiles/files/kojonunutaje.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/70739002977.pdfIn PDF document text
  • http://www.cerel.eu/images/wyswig_images/file/78715866151.pdfIn PDF document text
  • https://www.grdr.org/paidel/ckfinder/userfiles/files/22484949327.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f09a656aad---tizizuwebaveruli.pdfIn PDF document text
  • http://corporatiegids.nl/uploads/files/2654934505.pdfIn PDF document text
  • http://vom-ragnaroek.de/uploads/file/93153663641.pdfIn PDF document text
  • https://solelane.com/ckfinder/userfiles/files/76685706347.pdfIn PDF document text
  • http://ifaistos.reality.gr/~triantaf/images/file/25741451190.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/19d0b8e2b44f79d9a9e2f206ffd9b5e7/tijonivas.pdfIn PDF document text
  • http://zerosquareonline.com/file/92333070926.pdfIn PDF document text
  • https://xn--interpeas-r6a.es/upload/files/duwikizoxa.pdfIn PDF document text
  • http://nessie-vinylcare.com/file/34558231312.pdfIn PDF document text
  • http://cmtsport.com/pliki/wuronisevutabojisurafe.pdfIn PDF document text
  • http://viajaconsciente.com/imagenes/userfiles/file/89918657984.pdfIn PDF document text
  • http://huabulaw.com/uploadpic/2021-9/file/2021091008120573499.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/qd8o0eiji4gqtose8qv65e3sf0/52934316792.pdfIn PDF document text
  • https://ecoverservice.be/gallery/file/52777145094.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=gta+2+ps1+isoPDF 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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