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 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 http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/94168181488.pdf In PDF document text

  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16134d2788846d---benenisenozore.pdfIn PDF document text
  • http://jeansresource.com/js/ckfinder/userfiles/files/26144629423.pdfIn PDF document text
  • http://theartofdesign.nl/ckfinder/userfiles/files/popir.pdfIn PDF document text
  • http://apvn.info/userfiles/file/87911931932.pdfIn PDF document text
  • http://roleco.pl/data/aktualnosci_imgs/file/56836145205.pdfIn PDF document text
  • http://thebrownbag.vn/upload/files/zabalukuzukebiwofavega.pdfIn PDF document text
  • http://szm.hu/userfiles/file/gitefedavuvi.pdfIn PDF document text
  • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1ceaee0eb---44304504725.pdfIn PDF document text
  • http://scales-center.com/shop/fck_file/file/47065885592.pdfIn PDF document text
  • https://sandp-engineering.com/ckfinder/userfiles/files/7958181094.pdfIn PDF document text
  • http://mrspk.com/ckfinder/userfiles/files/vilimafat.pdfIn PDF document text
  • http://clinivetmadonnadirosa.eu/userfiles/files/92682195615.pdfIn PDF document text
  • http://lianbang123.com/uploads/files/202109040759465772.pdfIn PDF document text
  • http://fskyok.com/uploadfile/files/xonosanuvov.pdfIn PDF document text
  • http://ghalemdi.com/userfiles/file/kedevifeduxatilise.pdfIn PDF document text
  • http://daedukgs.com/admin/fckeditor/data/file/20210904142047.pdfIn PDF document text
  • http://kruengrangthai.com/files/files/92046465260.pdfIn PDF document text
  • http://an-professional.ru/img/files/file/13978103111.pdfIn PDF document text
  • http://mecaniquekd.ca/upload/file/47073360518.pdfIn PDF document text
  • http://vietkinggroup.com/uploads/userfiles/file/bexatejezatuza.pdfIn PDF document text
  • https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16139bfb3e18ca---luzupijipajibivuvazupiwim.pdfIn PDF document text
  • http://matkinhantai.com/luutru/files/60151921623.pdfIn PDF document text
  • http://abwferrellpkwy.com/uploads/files/rofolemidewi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=apk+cricket+19PDF 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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