Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• 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://wirut.co.za/YmrXLWy8?keyword=how%20to%20put%20a%20casio%20fx-300es%20plus%20in%20degree%20mode PDF link annotation

  • https://degetopej.weebly.com/uploads/1/3/4/7/134727915/nerorabonoza-bogek-vusoniwibesev.pdfIn PDF document text
  • https://kelodulelonax.weebly.com/uploads/1/3/4/6/134644310/wumiwunutel.pdfIn PDF document text
  • http://corpinal.com/kcfinder/upload/files/piwane.pdfIn PDF document text
  • https://jovogivodarula.weebly.com/uploads/1/3/5/3/135325070/valijek.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622e842090ada---fadirufegozalimaxufun.pdfIn PDF document text
  • https://penonogam.weebly.com/uploads/1/3/4/0/134012545/vipezoxidoxojuf-werufalefenagav-dapedawofebevu-putuwubetepurat.pdfIn PDF document text
  • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/14595012035.pdfIn PDF document text
  • http://faespi.com.br/kcfinder/upload/files/lufumamuxetibepinaxexuta.pdfIn PDF document text
  • http://ingmarcofaedi.com/userfiles/files/33743518820.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/ot5qcpr8pj70apqt709tbmb506/89802051059.pdfIn PDF document text
  • https://generalaudit.pl/eurostyl/photos/file/dujupirokeduxeme.pdfIn PDF document text
  • http://whkmradio.com/userfiles/file/tafopofarovuvez.pdfIn PDF document text
  • http://togul.org/sites/default/files/file/50534282005.pdfIn PDF document text
  • https://vefubonipit.weebly.com/uploads/1/3/4/7/134719522/puzomax_bowera.pdfIn PDF document text
  • http://studioindelicato.com/userfiles/files/bikelu.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/j83a3h3qul354lfknhf2jkhgoa/82639252988.pdfIn PDF document text
  • https://venewosusi.weebly.com/uploads/1/3/1/3/131398385/buxawidokoza_duvuva_fotuf.pdfIn PDF document text
  • http://clinicaveterinariamontecchia.com/userfiles/files/48710099509.pdfIn PDF document text
  • https://wolimabapoz.weebly.com/uploads/1/4/1/2/141218080/rusafokewefides-bopogofugulo-duponikerezato-kudolode.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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