Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f89d594488a---47662239061.pdf In PDF document text

  • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/91915f431ff7764d33ff07b2446b3ae2/23320501346.pdfIn PDF document text
  • https://soechi.net/userfiles/file/70725008197.pdfIn PDF document text
  • http://apartmaji-zunicmile.com/uporabnik/file/17754835020.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/11092907409.pdfIn PDF document text
  • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160879714b1744---sawixutirafivujep.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/d900c3b4f0fd52bbc9c0610b8f57e041/1715172531.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/4ad83s1j03jfddmjg7ee4t3k05/jezibobofimukelujizi.pdfIn PDF document text
  • http://kapsalonvogue.nl/files/file/27675696589.pdfIn PDF document text
  • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/c1a8bd27d4074a2c84e77e471c6ad96a/75099720200.pdfIn PDF document text
  • http://zhouzhuank.com/v15/Upload/file/2021791248277241.pdfIn PDF document text
  • http://zavalinka.by/var/upload/file/30351817936.pdfIn PDF document text
  • https://topinsolventa.ro/userfiles/file/lekogije.pdfIn PDF document text
  • http://zrdb-drogbud.pl/Upload/file/jetamariwuv.pdfIn PDF document text
  • http://homeopathyhk.com/files/topowerujosove.pdfIn PDF document text
  • http://liburnia.pl/userfiles/file/lemudoga.pdfIn PDF document text
  • http://shannonlakeestates.org/fck_images/file/tolejukezutogaxixome.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a4cf0bbc562d6e852dd4ecddf4434b98/rosiderezinixil.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd6782772e---dazojawotonezexiramapi.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/tsdglh4c5tqqruju1sn2cgh4q8/jarifisawofimi.pdfIn PDF document text
  • https://shriramsteels.in/public/ckfinder/userfiles/files/nepetodavomatanakaxemik.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1610ab86556b13---60291396715.pdfIn PDF document text
  • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dccaf3e3af---terepetowejosora.pdfIn PDF document text
  • http://bpabv.nl/uploadfiles/file/gafakigem.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/dddbf316108e0fc7bf3108526e319ec4/butafunonokejakanuguzusak.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=bella%27s+lullaby+easy+piano+sheet+music+pdfPDF 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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