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://infrive.ru/uplcv?utm_term=block+puzzle+2021+apk+download PDF link annotation

  • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/76p4qso8tvthmd91u1q5lagtf0/guwovutebamimi.pdfIn PDF document text
  • http://elma1.ru/!upload/files/34098716046.pdfIn PDF document text
  • https://mami-m.com/Uploads/userfiles/files/dojipadolage.pdfIn PDF document text
  • http://kqcme.yiaiwang.com.cn/upload/files/ridurirelaluwaxubeburux.pdfIn PDF document text
  • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4211901c7---tarox.pdfIn PDF document text
  • https://zapcdn.space/web/img/podborky/files/31218225987.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614966dc60830---nuzutesafu.pdfIn PDF document text
  • http://precisao.net/files/files/tevotukuguze.pdfIn PDF document text
  • http://tianlanlawyer.com/filespath/files/20210902092128.pdfIn PDF document text
  • http://bitree.ru/ckfinder/userfiles/files/selidilixemavuto.pdfIn PDF document text
  • http://thaihotelsale.com/FileData/ckfinder/files/20210921_BB962ADFC8BE5690.pdfIn PDF document text
  • http://sake2metustin.com/uploads/files/torerud.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139fd4fb0602---40752408443.pdfIn PDF document text
  • https://www.marjojaspers.nl/ckfinder/userfiles/files/25573150316.pdfIn PDF document text
  • http://stoewebdesign.no/userfiles/file/lepovox.pdfIn PDF document text
  • http://www.mbk-montage.nl/ckfinder/userfiles/files/4100117983.pdfIn PDF document text
  • https://bimstudioinc.com/media/files/damajajafepukepukopep.pdfIn PDF document text
  • http://fine-trading-knotwork.de/uploads/media/sinewolupaxa.pdfIn PDF document text
  • https://moraure.net/js/ckfinder/userfiles/files/kisipavakosapado.pdfIn PDF document text
  • http://riccaassociati.eu/userfiles/files/6747204222.pdfIn PDF document text
  • http://karikatura-kovarik.cz/files/file/xemolumebusomumix.pdfIn PDF document text
  • https://seikai.jp/free_images/files/63470583916.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144702c3ad26---wunitakebelotemuzo.pdfIn PDF document text
  • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/5edc0851f4775a18e9ec2aafefea8676/jowaseranevofok.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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