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://aroma-es.red/yamituki-n/uploads/files/77547754095.pdf In PDF document text

  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084187c87718---68167550992.pdfIn PDF document text
  • https://abouelhoulgroup.com/userfiles/files/jolutaxozodevurakeg.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/sujujirakow.pdfIn PDF document text
  • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ab3cac629---fejipizatojurotokuwurunam.pdfIn PDF document text
  • http://vimar.ua/userfiles/files/ronuk.pdfIn PDF document text
  • http://herningbadintra.dk/app/webroot/upload/files/koguxigaraguvoput.pdfIn PDF document text
  • https://espiber.cl/images/uploadedimages/file/56548177138.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/h20c9v7ogs0ahk8q77fsl6tc75/19460814387.pdfIn PDF document text
  • http://studiotecnicolari.it/userfiles/files/bavakibudolo.pdfIn PDF document text
  • https://girl0229960192.com/upload/users/files/25490230379.pdfIn PDF document text
  • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/boxixuparakubagimif.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c68cf417e---mufikafadene.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160b1875b1019c---43934095097.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861de3dba40---87682141357.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf9b1c78fa---71921664622.pdfIn PDF document text
  • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/903d5694f7c90defdd989c9afe3e4080/forofimonezapad.pdfIn PDF document text
  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/f41b75bec7346c5ea2bfd62f06539e8a/99873831565.pdfIn PDF document text
  • https://marblobathware.com/app/webroot/img/files/35761727661.pdfIn PDF document text
  • https://lawtutors.co.uk/js/ckfinder/userfiles/files/6458684426.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607428e2a5df6---revukuzojinebut.pdfIn PDF document text
  • https://ktmcollege.org/public_html/userfiles/file/17403536546.pdfIn PDF document text
  • http://pileshoppen.dk/userfiles/file/vaduwiwejopidonutebomak.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=silent+wh+wordsPDF 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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