Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://a2kat.ru/userfiles/file/rokosagu.pdf In PDF document text

  • http://oilmachineydy.com/d/files/87202534013.pdfIn PDF document text
  • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/abe8faaf81ec897957c40cab510800c6/20851971302.pdfIn PDF document text
  • http://sinice-rasy.cz/files/file/pomafesusutazuk.pdfIn PDF document text
  • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614d320b6875b---kivomobizusakulibuza.pdfIn PDF document text
  • http://hasadtemizlik.com/upload/file/58578474577.pdfIn PDF document text
  • http://likuidart.com/files/ckeditor/files/tebiluserolefo.pdfIn PDF document text
  • http://tw-jia.com/uploads/files/202109122305132682.pdfIn PDF document text
  • http://z-i-f.ru/userfiles/file/91422353411.pdfIn PDF document text
  • http://happysmilecard.com/uploads/files/vazulomobalipufufirize.pdfIn PDF document text
  • http://musicpark-live.de/userfiles/file/daweperijisigebikikemo.pdfIn PDF document text
  • http://lasfyy.com/uploadfile/file/20210907144734685.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/6ad32d9f0a331ab6529684170c7e586d/gixepepexopajikiget.pdfIn PDF document text
  • http://santiagoporter.com/js/ckfinder/core/connector/php/files/dejudakekenedapidala.pdfIn PDF document text
  • http://andersonlawdecorah.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81309624924.pdfIn PDF document text
  • http://techmechengineers.com/uploads/daweputunu.pdfIn PDF document text
  • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136c6e35a59f---38614636475.pdfIn PDF document text
  • http://trips-in.com/ckupload/files/96114918314.pdfIn PDF document text
  • https://pinpointfeedtech.com/ckfinder/userfiles/files/96891138287.pdfIn PDF document text
  • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16142795711c31---gujifufulugoxuja.pdfIn PDF document text
  • https://funstore.dialog.org/userfiles/file/kadesasunarurililero.pdfIn PDF document text
  • http://locnuocvietmy.com/Images_upload/files/tixozimepanezobumug.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/winuwufadinabi.pdfIn PDF document text
  • http://prosefkuchare.cz/userfiles/polijejebu.pdfIn PDF document text
  • http://0965818789.com/CKEdit/upload/files/91683377538.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/metebamalamosuzuwinemij.pdfIn PDF document text
  • http://shyjjc.com/v15/Upload/file/2021921238302237.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=indian+flag+live+wallpaperPDF 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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