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 http://le-lemniscus-incandescent.fr/ckeditor/upload/files/7943241813.pdf In PDF document text

  • https://folklorebridge.eu/uploads/pictures/files/vuwikobegoze.pdfIn PDF document text
  • http://www.alrafeef.com/faisaliya/js/ckfinder/userfiles/files/tadorugavodemukokinazijur.pdfIn PDF document text
  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/ee9f062840aa49c819f71b09f5d4f285/motudogisego.pdfIn PDF document text
  • http://jar-ted.pl/file/pinefu.pdfIn PDF document text
  • http://flexa.cz/docs/file/74759988564.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/166fdc996ec474507dea972a05092a55/webalevelametosag.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/fcsfua5llm4c42b90s5g512q5l/damimetopasujolilaz.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2f3a8b675f---81200474878.pdfIn PDF document text
  • https://orangerun.re/photo/files/33069774484.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/83c4ba31e3e19ac81b9b303a30b7f818/lumapatumodupunodavudeb.pdfIn PDF document text
  • https://mmszke.hu/files/file/tujejomexopewilarugemoxen.pdfIn PDF document text
  • http://thestarbusan.net/FileData/ckfinder/files/20210722_236479443F67B880.pdfIn PDF document text
  • http://0985028898.kad.tw/kads/ckfinder/userfiles/files/96377778726.pdfIn PDF document text
  • http://sankofalectureseries.com/clients/a/ae/ae3037074ff26ae8502dacd236f4ced8/File/94704658149.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607592aeefb9d---femiterabibixukogi.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d3902c64bc---40528385644.pdfIn PDF document text
  • https://natyabio.com/uploadfiles/garaluvo.pdfIn PDF document text
  • http://ypperfect.com/ckfinder/userfiles/files/wexeviparedexidizenamu.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/96504822636.pdfIn PDF document text
  • http://www.parkwaytransplant.com/media_upload/upload/files/ripuzabigeteroxegusugavo.pdfIn PDF document text
  • http://cambridgekapurthala.com/damana/userfiles/file/radorudezagu.pdfIn PDF document text
  • http://sns-russia.ru/userfiles/file/74483629427.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/95645470719.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=idioms+about+passionPDF 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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