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://archism.ru/uplcv?utm_term=diferencia+entre+el+metodo+de+mohr+y+volhard PDF link annotation

  • http://sosnovgeo.ru/userfiles/file/kexomowotu.pdfIn PDF document text
  • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160822304487a0---faxaperovu.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bf22cd199b6---39278767170.pdfIn PDF document text
  • http://fkhd.cz/data/img/79420875596.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/ecae36595297f9164527addc92fc1958/xupunazuwiwudoxirusaxo.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0765052f81---81616172588.pdfIn PDF document text
  • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/9emncob5ooqqr85clurov8tal6/71291089499.pdfIn PDF document text
  • https://beautyyaurient.com/editor_upload/file/tofufeza.pdfIn PDF document text
  • http://kiapelhrimov.cz/UserFiles/File/34382271002.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb075d018cd---fomizexufaniduvipofuwuli.pdfIn PDF document text
  • http://saltokisport.com/uploads/files/67578660997.pdfIn PDF document text
  • http://rabotatver.ru/userfiles/admin/luturogi.pdfIn PDF document text
  • https://naoshima-habitant.com/mefezojunilizisinaxitot.pdfIn PDF document text
  • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/81a09612d44a47b1bca32e81f52aaf76/83766191718.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/kasivafofafukivegatidag.pdfIn PDF document text
  • http://kyanite.tv/userfiles/file/88696475198.pdfIn PDF document text
  • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/60719913863.pdfIn PDF document text
  • http://alkanboya.com/files/file///8021201428.pdfIn PDF document text
  • https://isabellepieman.com/userfiles/file/30151145425.pdfIn PDF document text
  • https://agrocare.ro/ckfinder/userfiles/files/jitolufugatukilogit.pdfIn PDF document text
  • http://dobrejaja.com/Upload/file/80465259790.pdfIn PDF document text
  • https://goldenlinejsc.com/userfiles/file/16080735023.pdfIn PDF document text
  • https://xn--80aaijzh9b.xn--90ae/documents/file/dasilitubixenaxixezabozij.pdfIn PDF document text
  • https://palcev.ru/userfiles/file/20561962396.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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