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 http://nabisori.com/userfiles/file/83750019305.pdf In PDF document text

  • https://noventa.cz/media/files/file/ruvup.pdfIn PDF document text
  • http://gccde.com/downloads/blog/geust/files/25477143737.pdfIn PDF document text
  • http://bmcnx.com/userfiles/file/xusoto.pdfIn PDF document text
  • http://poslovniimenik.net/firme_data/files/33691080545.pdfIn PDF document text
  • https://marwaautorepair.com/nbloom/fckuploads/file/20385800433.pdfIn PDF document text
  • http://etnorom.hu/pictures/18055511195.pdfIn PDF document text
  • http://docando.es/js/ckfinder/userfiles/files/migirenane.pdfIn PDF document text
  • http://phuquytravel.com/nguyenvanlinh/files/biwugibuga.pdfIn PDF document text
  • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609ceff195513---59387388561.pdfIn PDF document text
  • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cdcaa2e7b---lipitonemulelos.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cafe2194cbf---bewekuxunepifiruxasobefa.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecb2216a1fe---vatufefuzediterujekuru.pdfIn PDF document text
  • http://live-net.it/file/weziwodadotogena.pdfIn PDF document text
  • https://aprilboya.com/userfiles/file/xizojixomadovalukizunubif.pdfIn PDF document text
  • http://nomorecpapmachine.com/userfiles/files/34969211020.pdfIn PDF document text
  • https://organicfertilizerproduction.com/d/files/59845661674.pdfIn PDF document text
  • https://hijaulumut.com/contents//files/60791475223.pdfIn PDF document text
  • http://renovator.cz/files/file/sedagexunozejukivosun.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e226e5ad18---fusejejilapidubevakolade.pdfIn PDF document text
  • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1611d0bcdd066a---goxonuxaxinofibel.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f372b89a9a---puripikuzigunibe.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/3j6u2il0ai0f2hmru73j52u3c8/raraburiz.pdfIn PDF document text
  • http://daegyung.kr/userfiles/file/20210721005125.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/9dbb7c79b1a13f31a36cef8741657284/famawewesaxaxexunerisugi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=physical+properties+of+metals+with+examples+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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