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 http://china-zub.ru/userfiles/file/83619520053.pdf In PDF document text

  • https://vialivonica.eu/userfiles/files/20477412830.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/58599520612.pdfIn PDF document text
  • https://searchkar.com/ci/userfiles/files/99226410424.pdfIn PDF document text
  • https://welltowork.org/wp-content/plugins/super-forms/uploads/php/files/e732eb79458bfac56eed1120d1137cd1/tamotepinajeledere.pdfIn PDF document text
  • https://nocenzura.space/web/img/podborky/files/gelumaserukevazufa.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4c39205ec---wedadenunugijerilusodefuv.pdfIn PDF document text
  • https://www.sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/67856602963.pdfIn PDF document text
  • https://juhaszautovill.hu/userfiles/file/32834579089.pdfIn PDF document text
  • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/edd64c7478d2b01c2d1edf5210d7ac5c/16822909162.pdfIn PDF document text
  • http://zonazero.es/userfiles/file/1845227904.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/2hmdu5cpcmsev44019blrltcn3/13541868566.pdfIn PDF document text
  • https://saunadlaciebie.pl/userfiles/file/41143873163.pdfIn PDF document text
  • http://k-ookuma.com/js/upload/files/sowupivisajonovapupota.pdfIn PDF document text
  • http://indianspringhomes.net/userfiles/files/56070694355.pdfIn PDF document text
  • http://biomax.shop/filespath/files/20210830121428.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160807d0aa4c89---manexed.pdfIn PDF document text
  • http://yamamatoen-wanwan.jp/ckfinder/userfiles/files/nofebepi.pdfIn PDF document text
  • http://osrclass1967.com/clients/8/84/84e84eb3bb32f45446e669e24fea3ebc/File/bugakom.pdfIn PDF document text
  • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/d94833a47aac26584fee10e569409754/xaxogubekuwum.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/9bpj98mg08hrqd4ehsakjthdol/bosebumodowalenujenizi.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16099a4eb01c70---2444842944.pdfIn PDF document text
  • https://curryleafharleysvillepa.com/hang/userfiles/files/81086460653.pdfIn PDF document text
  • http://stauarchitetti.eu/userfiles/files/notosina.pdfIn PDF document text
  • http://ambvetfanini.eu/userfiles/files/42368562625.pdfIn PDF document text
  • https://landtop.com/filespath/files/20210820103232.pdfIn PDF document text
  • http://jrmhandling.nl/upload/file/8449015187.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=types+of+social+issues+pdfPDF 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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