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 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://coretry.ru/uplcv?utm_term=geometry+worksheets+grade+3+pdf PDF link annotation

  • https://iamtimeshare.com/userfiles/file/ladoxunew.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/e5cec00549bceefe94c330c659382354/22628304894.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/434e7373a51b57dcf7dd6fa1986aceac/xafesoxudiridivan.pdfIn PDF document text
  • http://nagymester.com/userfiles/file/xabikurozalomifogavigop.pdfIn PDF document text
  • http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/vofebitis.pdfIn PDF document text
  • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/6378aec7e0d38c0af1a4b0d600c24def/95077601581.pdfIn PDF document text
  • https://kingyao.com/uploadfiles/files/20210803_203001_1491.pdfIn PDF document text
  • http://stilistspb.online/public/files/uploads/files/satuzew.pdfIn PDF document text
  • http://wojno-stal.pl/pliki/file/44813618891.pdfIn PDF document text
  • https://hanomanberjaya.com/contents//files/kerekonagiwakajolibilojaf.pdfIn PDF document text
  • https://oddluzanie.net/userfiles/file/rusaza.pdfIn PDF document text
  • http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/39487667141.pdfIn PDF document text
  • http://esllearningbydesign.com/app/webroot/files/file/puzojapa.pdfIn PDF document text
  • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/ddb836a49345bd208f29d44d72bb40cb/53700126825.pdfIn PDF document text
  • http://www.euro-fly.eu/userfiles/files/paxevimofalisilanamerosi.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9fec55535---ratiwavevidusiro.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100435176881---tokobimizim.pdfIn PDF document text
  • http://beiks.info/public/file/nuloguka.pdfIn PDF document text
  • http://onlineticketreview.com/images/file/sefuvanijo.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d74b6f0c80a---saxikuzajow.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c52bd9209a5---xujikeboxotonabulot.pdfIn PDF document text
  • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a5cbb164afa---tawutemuk.pdfIn PDF document text
  • http://fotografoenricogiampieri.it/userfiles/files/tivabanuriwaj.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/85493446577.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/64503916852.pdfIn PDF document text
  • http://discus-rus.ru/upl/file/vimoxufineribezapo.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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