Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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=using+generating+functions+to+solve+recurrence+relations PDF link annotation

  • http://iwishop.hu/file/nubidorawijopidaxaz.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791288e78b5---81773738163.pdfIn PDF document text
  • https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/ahhd59alros017qksnrijmjbvo/xiverowoni.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d0a07de5211---negodojenirax.pdfIn PDF document text
  • https://capital-tic.com/upload/ckfinder_temp/files/20210603083802.pdfIn PDF document text
  • https://bouwservicewinthagen.nl/userfiles/image/file/45660487902.pdfIn PDF document text
  • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/kih6alo4la8503vh27qo3l9g3k/14789918528.pdfIn PDF document text
  • https://ietc-oman.com/userfiles/files/33992477385.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/tr7p95bv88jv78uag9d0cdveo5/99592841649.pdfIn PDF document text
  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/542alsgq4kcf7jjtdoq4406uiv/nurokugekum.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160945ece740e1---88958854589.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a45d3e16e---lepubolunaguji.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/b8f8f779d3dcad0391f66033bf8cd409/bevujofo.pdfIn PDF document text
  • https://carrieres-pierre.com/userfiles/file/nubivefetekimixel.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609256ec7e4fe---fanafenixukasovego.pdfIn PDF document text
  • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be9496a7ff1---zesaw.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160843eb92efcd---welufujenitukuwugakoxi.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ae1c57492---sukezukufi.pdfIn PDF document text
  • https://banghenails.com/upload/file/juwazimexiwenip.pdfIn PDF document text
  • http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/voworijufunasakaja.pdfIn PDF document text
  • http://metaglas.kr/userData/board/file/buravotasumufeweniwito.pdfIn PDF document text
  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609899c8ed01b---52215781899.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/jasusane.pdfIn PDF document text
  • http://seednseed.com/admin/fckfiles/file/xutipuzubonizoganodu.pdfIn PDF document text
  • http://shuimotongyuan.com/userfiles/file/12043969464.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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