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 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 https://allytemp.ru/uplcv?utm_term=how+can+i+remove+my+phone+from+safe+mode PDF link annotation

  • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/rdj7hfdk9stiliruu06k551u24/15369596535.pdfIn PDF document text
  • https://cqhuaan.myhost360.cn/upload/files/09-16-22-36-51-89.pdfIn PDF document text
  • https://hongmao.tw/uploads/files/202109020112306145.pdfIn PDF document text
  • http://ttfi.org/app/webroot/userfiles/file/46344464858.pdfIn PDF document text
  • http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/livamewafawiw.pdfIn PDF document text
  • http://100gastro.cz/soubory/files/8083389629.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138bfcf3dc6c---wubojezosekat.pdfIn PDF document text
  • https://gadesign52.com/uploads/files/202109050231471870.pdfIn PDF document text
  • http://actybrain-consult.com/Upload/files/28337060193.pdfIn PDF document text
  • http://menifee.hanasushichoice.com/uploads/files/mevulovamemo.pdfIn PDF document text
  • http://1hozain.ru/files/userfiles/files/vakometuwemex.pdfIn PDF document text
  • http://aokisuper.com/ckfinder/userfiles/files/27297041793.pdfIn PDF document text
  • http://satcomlink.com/userData/board/file/bapozeza.pdfIn PDF document text
  • http://donovaly-ubytovanie-safran.sk/web/userfiles/file/99184872300.pdfIn PDF document text
  • http://ekvatorbl.com/userfiles/file/90718049662.pdfIn PDF document text
  • http://xingzhongjing.com/userfiles/file/20210924152706_1035758302.pdfIn PDF document text
  • http://congtrinhnhaviet.vn/upload/files/71997267309.pdfIn PDF document text
  • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149dc0366795---mugidimuxeximiva.pdfIn PDF document text
  • http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/88164501030.pdfIn PDF document text
  • http://lamekatus.ee/uploads/ckeditor/files/43559092323.pdfIn PDF document text
  • http://topup-fight.com/ckfinder/userfiles/files/pewesobomodepu.pdfIn PDF document text
  • http://glamour-nsk.ru/ckfinder/userfiles/files/jobasatot.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161330ca94fb08---11716748173.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/vidunilaveroroguwup.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/88830067494.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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