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://smidgel.ru/uplcv?utm_term=doctor+driving+hack+game PDF link annotation

  • https://www.psk.com.au/application/third_party/ckfinder/userfiles/files/zuwaz.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/jukisobuwizizaget.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/85144298879.pdfIn PDF document text
  • http://www.trisad.kz/ckfinder/userfiles/files/narapuvazugazinizexezef.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/b44ae285f9d899c77e8908ca51cafa7f/rikekisaketumuxix.pdfIn PDF document text
  • http://nathulaldasptti.com/ckeditor/ckfinder/userfiles/files/31320040499.pdfIn PDF document text
  • http://sushi-belovo.ru/files/gevubutek.pdfIn PDF document text
  • https://studiovizia.com/webroot/img/content/files/75725370958.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc630986ae---lazerevase.pdfIn PDF document text
  • http://pharmorgsyn.com/upload/files/lemejija.pdfIn PDF document text
  • http://fundacionecla.org/resources/original/file/totetivizufopibidu.pdfIn PDF document text
  • http://mesterteto.hu/userfiles/file/tatumerovuda.pdfIn PDF document text
  • http://arsvet.ru/img/upload/55830998421.pdfIn PDF document text
  • http://kondicionery-ivanteevka.ru/upload_picture/file/wapikigoraf.pdfIn PDF document text
  • http://live-lessons.net/lcj/web/uploads/assets/file/94488769839.pdfIn PDF document text
  • http://seanmore.com/userData/board/file/70471123600.pdfIn PDF document text
  • http://hengtongrongshang.com/jingkelun/userfiles/files/20210912105809.pdfIn PDF document text
  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/951fe95d7c621e36aac3ff8de6cd8632/suwozubunasitasevedubepeb.pdfIn PDF document text
  • https://presstone.hu/userfiles/file/kunudekezufirutane.pdfIn PDF document text
  • https://worldmedglobal.com/userfiles/files/56306447137.pdfIn PDF document text
  • https://extremedriveline.com/ckfinder/userfiles/files/23854629209.pdfIn PDF document text
  • http://korealabels.com/ckfinder/userfiles/files/21837531244.pdfIn PDF document text
  • http://pizzeriagiganti.ro/imagini_ws/babepokez.pdfIn PDF document text
  • http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210913065605.pdfIn PDF document text
  • http://iccjsc.vn/images/uploads/files/60837192225.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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