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 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://wastran.ru/uplcv?utm_term=bring+to+an+end+meaning PDF link annotation

  • http://novehorizonty.sk/userfiles/file/10824573852.pdfIn PDF document text
  • https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/kabilit.pdfIn PDF document text
  • http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/rafizafobawojotulad.pdfIn PDF document text
  • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/99n5ukt6tg01v73isfprl9pioi/37222003453.pdfIn PDF document text
  • http://fbrasil.com/userfiles/file///xuramakaxesalikavenixi.pdfIn PDF document text
  • http://itkaufmann.com/images/fckimages/file/nasofevoj.pdfIn PDF document text
  • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pesowulisajiwamu.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607571853740f---68472352087.pdfIn PDF document text
  • https://vmwarts.com/ecovic/file/wozag.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/dc3a2cc154d0e937d4c9537dfa1337f4/9595723465.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16097ff99b83ec---zemabojedakexunow.pdfIn PDF document text
  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d36f659b99---biguzanedekaguma.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071bd74ae2fd---jiruwukatamonirogaruv.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f97a4ac7887---72230831981.pdfIn PDF document text
  • https://papersacksfactory.ae/images/bulk_images/files/tatatizile.pdfIn PDF document text
  • http://toonesk.com/upload/tusivo.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67ae53e457---9633060363.pdfIn PDF document text
  • https://satbietthu.com/luutru/files/67471420551.pdfIn PDF document text
  • https://mokhalasati.com/userfiles/files/55133843968.pdfIn PDF document text
  • http://solartgaleria.hu/images/file/41766029448.pdfIn PDF document text
  • http://www.celso.org/download/zupolux.pdfIn PDF document text
  • http://sincaremedicaltour.com/js/upload/gamadute.pdfIn PDF document text
  • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/2djtc97jcs6oeag2pahlmnhbai/jivemanesala.pdfIn PDF document text
  • 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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