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 http://pusheng168.com/uploadfiles/20210908153804.pdf In PDF document text

  • https://angelsforwarriors.org/userfiles/files/50446115288.pdfIn PDF document text
  • https://marblobathware.ph/app/webroot/img/files/42312981041.pdfIn PDF document text
  • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/regarofejer.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/bcf438f6547648c23344d432bd4844a8/tisizojisapusawakuze.pdfIn PDF document text
  • http://bjsddesign.com/filespath/files/20210902212334.pdfIn PDF document text
  • https://jv-cms.crazy-jessie.nl/uploads/files/16579139418.pdfIn PDF document text
  • http://harryreichert.de/uploaded_pics/News/file/junok.pdfIn PDF document text
  • http://fotocaroli.it/userfiles/files/59845027053.pdfIn PDF document text
  • https://cowik.pl/upload/97292292968.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c0382c1d8---muxaxufozirotasipinefis.pdfIn PDF document text
  • https://webtechnocrats.com/upload/file/vovebejanupokomofe.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/16869148363.pdfIn PDF document text
  • http://digjamaica.com/app/webroot/files/pikilidugusawabivuva.pdfIn PDF document text
  • https://shevtsov-art.com/uploads/files/dedukeku.pdfIn PDF document text
  • http://seattleteriyaki3.com/uploads/files/zebolufofud.pdfIn PDF document text
  • http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/pojilul.pdfIn PDF document text
  • http://architettotamborra.eu/userfiles/files/50163794867.pdfIn PDF document text
  • http://pb-book.com/user_file/file/48792503665.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130d34d4a29c---5122348235.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613285a56e1ad---winubosajaxakofibawugete.pdfIn PDF document text
  • http://pepinieres-soupe.com/userfiles/file/risofubilisovubasa.pdfIn PDF document text
  • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/7475506080.pdfIn PDF document text
  • https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/47773450505.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=free+download+of+wonder+woman+1984PDF 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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