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 https://pistant.ru/uplcv?utm_term=1080p+60fps+movies+online PDF link annotation

  • https://www.hmgfinance.com/ckfinder/userfiles/files/16217022080.pdfIn PDF document text
  • http://plncse.hu/php_data/file/kijidilu.pdfIn PDF document text
  • http://wefocusdesign.com/upload/files/vakosebidadodan.pdfIn PDF document text
  • http://progettarecasa.com/userfiles/files/74819713958.pdfIn PDF document text
  • https://www.lire-les-notes.com/ckfinder/userfiles/files/8908702403.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/slbt2g0qp3d4cmf4b3dial0au6/16854760124.pdfIn PDF document text
  • https://sakkestadbil.no/userfiles/file/11223680930.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16136c46a27f06---zilulidijevomodom.pdfIn PDF document text
  • http://fuguchair.com/upfolder/e/files/20210910132458.pdfIn PDF document text
  • https://musluogluotomotiv.com/upload/ckfinder/files/74671573115.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/ffcfb1791a42debc23a6af40f0ceb2f9/silubexagojefadominose.pdfIn PDF document text
  • https://aurorabersinar2.com/contents/files/60175507365.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/161406acfc3be2---99229221097.pdfIn PDF document text
  • http://yuanda-boiler.com/d/files/59568923153.pdfIn PDF document text
  • http://uzks.hr/upload/datoteke/60863500319.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613038dc3b509---54286763691.pdfIn PDF document text
  • http://xn--h1agcmh.com/ckfinder/userfiles/files/80397438688.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/66777031997.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/jijom.pdfIn PDF document text
  • https://100tmt.com/uploadimage/files/20210916093556.pdfIn PDF document text
  • http://yishiweb.com/upfiles/files/20210912_170909.pdfIn PDF document text
  • http://cf2sc.cn/userfiles/file/56971665717.pdfIn PDF document text
  • http://penzionriverside.cz/files/file/54923968353.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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