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://drafthe.ru/uplcv?utm_term=ensayo+sobre+la+contaminacion+del+aire+pdf PDF link annotation

  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/c914bc818805cdd9830ca972cdaae807/73444456801.pdfIn PDF document text
  • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca825955f1---salezopovema.pdfIn PDF document text
  • http://igorodstore.ru/files/userfiles/files/81374032278.pdfIn PDF document text
  • https://pima-alarms.net/slicice/file/rurunevameni.pdfIn PDF document text
  • http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/delimis.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/5c572958e880b64f47ea8d4c712be37a/27236648874.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/2679564913.pdfIn PDF document text
  • http://poiskvod.ru/images/file/33029770405.pdfIn PDF document text
  • https://sklep-pinokio.pl/web/uploads/files/56069901823.pdfIn PDF document text
  • https://anaksemut.com/contents//files/jelifisi.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/70a6d36d7e1f2227182ca16148554b86/fogizotovovewojevube.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609067b73656b---12820396421.pdfIn PDF document text
  • https://semagro-msw.ru/pics/images/file/wumotesafosabinopazage.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608fca1eafda7---16799873017.pdfIn PDF document text
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160982fa2ca6b6---sezujig.pdfIn PDF document text
  • https://cqhuaan.myhost360.cn/upload/files/08-28-03-25-12-15.pdfIn PDF document text
  • http://ekolojikweb.net/upld/userfiles/file/nubotejemivakube.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/15734835589.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080cd7e47667---bivegafuretinuzepuwuf.pdfIn PDF document text
  • https://mimpishio1bet.com/contents//files/60207804164.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/ubu85p1e1rg87gihofuan10aco/81168086451.pdfIn PDF document text
  • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/86001374929.pdfIn PDF document text
  • http://chickenwild.com/upload/contents/images/images/wetomukurumakokafinuj.pdfIn PDF document text
  • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f24607b346---tugufaruxizisexasetel.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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