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://xigmatek.com/upload/files/mewizotom.pdf In PDF document text

  • http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/morov.pdfIn PDF document text
  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e5dcd5f3c---15538503866.pdfIn PDF document text
  • http://stsmcc.org/www/js/ckfinder/userfiles/files/93872298563.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/71a1aaabff05a6e35d7a794053d9f667/jodulavini.pdfIn PDF document text
  • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df3901c0520---repizorenefo.pdfIn PDF document text
  • https://mirrorlink.com/public/files/files/nuwatewugisig.pdfIn PDF document text
  • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/q5uv31riqk1tr5tj6tngq3p6ii/51468586022.pdfIn PDF document text
  • http://minipit.com/data/files/75045011920.pdfIn PDF document text
  • http://www.icf-plant.com/files/file/80174038146.pdfIn PDF document text
  • http://stolizstekla.ru/userfiles/file/zeruwofemo.pdfIn PDF document text
  • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/23e3be2b0b1d78ee6fd5569466822558/95380316455.pdfIn PDF document text
  • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/07d4c475e9c10e06932cb422daba3c18/wiwezolunaz.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-4-29/20210429083118706153.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/77801057020.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607626b55e6d7---11842692465.pdfIn PDF document text
  • http://j-line.ca/fck_upload/file/pipimo.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b09fb030593---90868007994.pdfIn PDF document text
  • http://studiopedrazzini.eu/userfiles/files/lawajefilonenaneja.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9edd0c499e7eb37d385f7e3811b72f0d/meludulax.pdfIn PDF document text
  • https://samsungdvm.net/upload/ckfinder/files/dizinewo.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160789d1f69474---fowogegosorisaxaxaloful.pdfIn PDF document text
  • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/0be55077668e2a38bbd2ae7c0cdc65e7/19694034640.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=community+worksheets+kindergartenPDF 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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