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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://kitapkapla.com/upload/ckfinder/files/28083620490.pdf In PDF document text

  • http://www.shjkyq.com/up_files/FCK/file/88606503002.pdfIn PDF document text
  • http://zaun-produzent.de/userfiles/file/tofef.pdfIn PDF document text
  • http://npas.ru/pic/file/20106700630.pdfIn PDF document text
  • http://caigeshi.com/uploadfile/file/2021090620145973499.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/sevodivubo.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5fee6b79b---70813356157.pdfIn PDF document text
  • http://videocycling.info/files/file/26004318695.pdfIn PDF document text
  • http://studio-orlandini.com/userfiles/files/19489960213.pdfIn PDF document text
  • http://classiccar-jp.com/js/upload/files/zoxifawe.pdfIn PDF document text
  • http://inannamsao.com/uploads/files/63793222385.pdfIn PDF document text
  • http://nawoo.net/userData/board/file/takafo.pdfIn PDF document text
  • http://lamorenj.com/userfiles/file/gumabofarizeganedevere.pdfIn PDF document text
  • https://www.l-games.jp/js/ckfinder/userfiles/files/63122694268.pdfIn PDF document text
  • http://www.plan.msu.ac.th/ckfinder/userfiles/files/21171726483.pdfIn PDF document text
  • http://hotelgiottotorino.com/userfiles/files/10733390310.pdfIn PDF document text
  • https://foulardfotografando.it/file/9260534101.pdfIn PDF document text
  • https://biblioteka-koneck.pl/ckfinder/userfiles/files/geziduvatabipakorozivo.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132937436b05---2605460980.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/cd4e4a9c7bcff313d30c77019aac5da8/78653369160.pdfIn PDF document text
  • https://hsdinstruments.nl/uploads/files/81867780395.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b31b353e66---1093913999.pdfIn PDF document text
  • http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/54458109055.pdfIn PDF document text
  • https://vaynhanh365.net/contents/files/71496704925.pdfIn PDF document text
  • http://iranjobex.com/cache/fck_files/file/bidimujatiwuxadakapawuw.pdfIn PDF document text
  • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/bosagibigotojevi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=stacked+waterfall+chart+with+multiple+seriesPDF link annotation
  • 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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