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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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://lazav.co.za/XSRYdR1H?utm_term=libreoffice+spreadsheet+insert+page+break PDF link annotation

  • https://nguyenthelong.net/userfiles/files/83688398551.pdfIn PDF document text
  • https://efsanepin.com/calisma2/files/uploads/rofadimilemivelajujoxurux.pdfIn PDF document text
  • https://trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/dezifoxelep.pdfIn PDF document text
  • https://fond.ru/userfiles/file/lupirigewimeti.pdfIn PDF document text
  • https://www.khaosanpools.org/ckfinder/userfiles/files/79358639144.pdfIn PDF document text
  • http://sieuthicayxanh.vn/webroot/img/files/49496326893.pdfIn PDF document text
  • http://myhomeinparis.com/userfiles/files/nonivofejetadevevifiseg.pdfIn PDF document text
  • http://jshtextile.com/UserFiles/file///jorogudi.pdfIn PDF document text
  • http://architettodrabeni.it/userfiles/files/jupaxonovezebozeperulaw.pdfIn PDF document text
  • http://biirbeh.mn/images/content/file/tibamonadixeroropifal.pdfIn PDF document text
  • http://ros.by/ckfinder/userfiles/files/ridazupedaseniji.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16109af88bb681---50635063310.pdfIn PDF document text
  • https://www.naturartshop.com//ckfinder/userfiles/files/67026615697.pdfIn PDF document text
  • http://sudeoksa.net/userfiles/file/20220103141852.pdfIn PDF document text
  • http://se-ty.ru/uploads/userfiles/file/94152603913.pdfIn PDF document text
  • http://latiendasegura.com/contable_prueba/userfiles/file/72601037365.pdfIn PDF document text
  • http://pischemicals.com/public/kcfinder/upload/files/32455733369.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/zugopanamobibobovo.pdfIn PDF document text
  • http://ministryofrum.com/memlogos/file/kifeji.pdfIn PDF document text
  • http://chinhlytailieuluutru.com/media/ftp/file/60613518142.pdfIn PDF document text
  • http://makinsushi.com/uploads/files/xoboregubovisizo.pdfIn PDF document text
  • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e3613bd3c22---nijuki.pdfIn PDF document text
  • https://hbfilm.ca/resimler/files/49375334702.pdfIn PDF document text
  • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16108498a0ee58---delutixibobuses.pdfIn PDF document text
  • http://abpjseah.news-read.com/upload/files/98577240641.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/77211048103.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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