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 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://wastran.ru/uplcv?utm_term=watch+hsmtmts+for+free PDF link annotation

  • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/5a5b1474562e9242b53b915f6c172168/wavezogilamewi.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/161351fbbd9ac7---81963828627.pdfIn PDF document text
  • https://sooryasales.com/uploads/file/didux.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/184d64ea24a64efd31d10fd4a0fab29a/sibivefevi.pdfIn PDF document text
  • https://petala.gr/userfiles/file/72909194912.pdfIn PDF document text
  • http://duetsepolno.pl/userfiles/file/50646887296.pdfIn PDF document text
  • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/73036569254.pdfIn PDF document text
  • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/70616ccea646de1498d0913e3af0bc27/febogukovuzumenogumejetag.pdfIn PDF document text
  • http://chiaranannini.com/userfiles/files/59156872283.pdfIn PDF document text
  • http://detectiveoffice.net/userfiles/file/lenabumopubazonefujakuv.pdfIn PDF document text
  • http://rimini-portal.de/bilderarchiv/file/64933218799.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/p75bjn9jvllv64or2a9v0du3tn/xebojitogasogezasagiz.pdfIn PDF document text
  • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613d183151d98---11744768069.pdfIn PDF document text
  • http://recrute.fr/files/files/44777811559.pdfIn PDF document text
  • https://vokalensemble-vocembalo.ch/userfiles/file/28799160963.pdfIn PDF document text
  • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dfcc03d2fa---wizabojabofabonugu.pdfIn PDF document text
  • https://iphonerepairservice.nl/app/webroot/files/userfiles/files/32124440821.pdfIn PDF document text
  • https://neurondevelopment.org/userfiles/file/gatozoj.pdfIn PDF document text
  • http://longbienco.com/js/ckfinder/userfiles/files/poropozi.pdfIn PDF document text
  • http://www.ochoadentalcare.com/tacgestorcontenidos_ochoa/documentos/file/In PDF document text
  • http://timocomputer.cz/files/file/bovasowiloko.pdfIn PDF document text
  • http://articolo17.it/siti/usr/foto/files/raxitakafasokuxerenovifis.pdfIn PDF document text
  • http://elskenecologie.nl/files/zowudek.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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