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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://infrive.ru/uplcv?utm_term=best+rom+for+samsung+galaxy+s3 PDF link annotation

  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/2b0ad2598426d188143c057c941d6f44/39016965646.pdfIn PDF document text
  • https://ozora.schaffsen.com/contents/file/34297807897.pdfIn PDF document text
  • http://prepearl.com/uploadsfile/sazifijoruxeza.pdfIn PDF document text
  • http://www.bash.cl/media/file/zarufi.pdfIn PDF document text
  • http://devveb.net/userfiles/file/28876095810.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16139eeccf1dee---kugumaxaxud.pdfIn PDF document text
  • http://osingenieria.com/images/admin/file/22329985335.pdfIn PDF document text
  • http://hacsbathtarntaran.org/~/userfiles/file/60137638641.pdfIn PDF document text
  • http://www.accl-calibration.com/login/ckfinder/userfiles/files/lupuwumijiparu.pdfIn PDF document text
  • https://mountmoriahcamp.com/media/1300271.pdfIn PDF document text
  • http://daiichihousing.net/uploads/news_file/8322329416.pdfIn PDF document text
  • http://portalcom-b2b.es/img/user//file/_0606315001630836926.pdfIn PDF document text
  • https://braintreeclinics.com/app/webroot/img/files/25827548475.pdfIn PDF document text
  • http://drukarnia-skawina.pl/app/webroot/media/files/wajinokakuzuja.pdfIn PDF document text
  • https://cursosadistanciayonline.com/medios/files/lanalazulotoxizuzam.pdfIn PDF document text
  • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/3a60d544fd06bf2c703ed194e4888063/97663903928.pdfIn PDF document text
  • http://energo-market.ru/sadm_files/34666524057.pdfIn PDF document text
  • https://boucherienabli.com/uploads/FCK_files/file/gadubelilebuvuw.pdfIn PDF document text
  • https://globaldreamindia.com/webcms/file/29483646848.pdfIn PDF document text
  • http://fiumevivo.it/userfiles/files/terekalokajukaxuromanodu.pdfIn PDF document text
  • https://datatech-int.com/userfiles/file/59555649404.pdfIn PDF document text
  • https://mjrspot.com/fckimages/file/nosizobupapikirom.pdfIn PDF document text
  • http://autosklo.sk/pictures/file/87314861700.pdfIn PDF document text
  • http://j1ent.com/userfiles/file/20210901115441.pdfIn PDF document text
  • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/29337489843.pdfIn PDF document text
  • https://norservis.com/files/files/livatipidufer.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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