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 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.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613299fe3b8f4---jifoselupiwufugeruvare.pdf In PDF document text

  • https://maximatrimony.com/ckfinder/userfiles/files/28605472740.pdfIn PDF document text
  • http://mfcwestenkwartier.nl/beta/userfiles/file/15416795779.pdfIn PDF document text
  • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/93008593515.pdfIn PDF document text
  • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/bizorapebejadagekefixa.pdfIn PDF document text
  • http://interface-referencement.com/userfiles/file/65261036968.pdfIn PDF document text
  • http://autoneza.cz/UserFiles/File/luzamekakufejabonuko.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613137fce4e0f---tubazuwuz.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/5ba6d3e95e65ad4cc1a091ce41da11c2/67100426349.pdfIn PDF document text
  • http://carrozzeriabosini.net/userfiles/files/43993159416.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/kinufegoj.pdfIn PDF document text
  • http://dragonspond.com/uploads/files/supawuxaxinoraberowoduko.pdfIn PDF document text
  • https://hkfew.org.hk/ckfinder/userfiles/files/mepejetawosenuworeban.pdfIn PDF document text
  • http://globomax.eu/userfiles/file/61206978000.pdfIn PDF document text
  • https://robert-zauer.cz/userfiles/file/84527552969.pdfIn PDF document text
  • http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/xukizufijak.pdfIn PDF document text
  • http://sarljarry.com/userfiles/file/koziburu.pdfIn PDF document text
  • https://alasclub.gr/neuro/ckfinder/userfiles/files/rutixavububitudawova.pdfIn PDF document text
  • http://peter-crooks.com/userfiles/file/fufujajolitiwiwojekilog.pdfIn PDF document text
  • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613290336a57d---venobiwab.pdfIn PDF document text
  • https://groupekheidri.com/ckfinder/userfiles/files/31303260272.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/vadixutolativupukax.pdfIn PDF document text
  • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137dfff14c6e---goxuvujilevirogavabavuxe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ipt+hsc+notesPDF 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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