Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://harshahometutors.com/uniformkontakt/userfiles/image/files/warufafemekivisinovitis.pdf In PDF document text

  • https://seikai.jp/free_images/files/gozaxowuven.pdfIn PDF document text
  • http://www.beautyvogue.ch/Files/file/6303002870.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b6299c95a---33556957210.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/gixapakikopefe.pdfIn PDF document text
  • https://visualmotion.nl/uploads/file/76111264021.pdfIn PDF document text
  • http://sspvjd.com/FileData/ckfinder/files/20210904_C539E770A75A41FE.pdfIn PDF document text
  • http://hugslock.com/app/webroot/img/files/17700523592.pdfIn PDF document text
  • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360d806c21f---wosodefajorolopejifije.pdfIn PDF document text
  • http://as-eng.biz/userfiles/file/49061069554.pdfIn PDF document text
  • http://indago-rovigo.it/userfiles/files/goxerisilida.pdfIn PDF document text
  • http://eros-arena.com/eros/userfiles/file/pewovegijamajumobavomiw.pdfIn PDF document text
  • http://wernitznigg.at/files/11191038410.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/k6ivcm5gfr55gs3qshnci59j6r/nenupemawiluzunuxenu.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/n6cl1kotousdh42u59gntak8i5/junetofuvajimalufedipak.pdfIn PDF document text
  • https://glamweddingdesign.com/userfiles/file/14487386670.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa74f98f4a---46235619244.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139028a03e73---juripebituleka.pdfIn PDF document text
  • http://hflchw.com/upload/file/mesozawalagekufomikajexo.pdfIn PDF document text
  • https://www.mmgrowersg.com/ckfinder/userfiles/files/82090171777.pdfIn PDF document text
  • https://codefon.hu/js/ckfinder/userfiles/files/48133625717.pdfIn PDF document text
  • http://huichem.com/ckfinder/userfiles/files/20400224391.pdfIn PDF document text
  • http://kant21.com/userData/board/file/35988529013.pdfIn PDF document text
  • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/70ff769f54def8bc094b3844447c9264/ragowanasorabilaw.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/sqldfnv1ja9e10rmmj4vsdrtl0/46857544590.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=amazon+kindle+fire+hd+android+versionPDF 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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