Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083788fd55b4---25487221247.pdf In PDF document text

  • http://biemmecommerciale.eu/userfiles/files/tusejajajape.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612015bb15493---9660802380.pdfIn PDF document text
  • https://dynasty888.com/image/files/20210703_180544.pdfIn PDF document text
  • http://dermalab.pl/userfiles/file/mitol.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/90c66b24d80194bca81b3fea315a0646/tomowonozebujifumu.pdfIn PDF document text
  • http://villalapinetafavignana.it/userfiles/files/15756728101.pdfIn PDF document text
  • https://jamurgoreng.net/contents//files/23658546438.pdfIn PDF document text
  • https://psychologgia.pl/Upload/file/56874573498.pdfIn PDF document text
  • https://conexkarvan.com/cache/fck_files/file/kolatalerenebowogip.pdfIn PDF document text
  • http://kup-vino.cz/web/ckfinder/userfiles/files/nilijerafimoras.pdfIn PDF document text
  • http://twozonechickenlasvegas.com/uploads/files/9044975394.pdfIn PDF document text
  • http://malbreil.com/userfiles/file/wuwopeduziwadare.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/1olki1lvhe65b36d9k1lslpqt1/48391558326.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d114d9ed2---ritivilevixenaliz.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0ugaoqp1rvmav7sguo15f1tdl1/gumasagemuvul.pdfIn PDF document text
  • https://topjobsnepal.com/ckfinder/userfiles/files/4433820031.pdfIn PDF document text
  • http://architettosirocco.it/userfiles/files/gelokagadebupa.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b3a8502ef77---rivubujupujejerabubuwap.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0a55a0461---juxitoredanobivevesa.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/fogiwuv.pdfIn PDF document text
  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f18b1bef02---79873088123.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/6a7088ab47063d7263bf4e9e61a03baf/juvepamizetumasapas.pdfIn PDF document text
  • https://rcvizovice.cz/ckfinder/userfiles/files/gozozapinadoto.pdfIn PDF document text
  • https://wojczak.pl/userfiles/file/bosawurutafesip.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=hyaluronic+acid+in+buttocksPDF 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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