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
• 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://pistant.ru/uplcv?utm_term=city+design+project+geometry PDF link annotation

  • http://stilna-ya.com/_userfiles/file/nitamato.pdfIn PDF document text
  • http://border-collie.ru/sites/default/files/file/topomexujopop.pdfIn PDF document text
  • https://rosewoodcity.org/nbloom/fckuploads/file/devosakovir.pdfIn PDF document text
  • https://tresonance.org/uploadfiles/limopuwilonadagusulaveko.pdfIn PDF document text
  • http://asavn.vn/uploads/userfiles/files/kegumo.pdfIn PDF document text
  • http://sanarina.de/ckfinder/userfiles/files/19427305170.pdfIn PDF document text
  • http://veewood.com/file_media/file_image/file/34001833516.pdfIn PDF document text
  • https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/87850129620.pdfIn PDF document text
  • http://pelejas.com/IMAGENS/CKFINDER/files/lorigibijebajinimared.pdfIn PDF document text
  • https://namkhoasaigon.vn/web/images/files/94595226908.pdfIn PDF document text
  • https://tjp2-hotlink-j3t.com/contents/files/27072125083.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/jmn4gclptnu0mmfcjcvokt7o2v/besonesik.pdfIn PDF document text
  • https://kawanmto.net/contents/files/35377542658.pdfIn PDF document text
  • http://td-mg.ru/uploads/files/92583309382.pdfIn PDF document text
  • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/1337978912.pdfIn PDF document text
  • http://duoctruongxuan.vn/userfiles/image/file/4982924797.pdfIn PDF document text
  • http://esllearningbydesign.com/app/webroot/files/file/bevokifeve.pdfIn PDF document text
  • http://andreevka.topmebli.com/content/xuploadimages/file/10103501589.pdfIn PDF document text
  • https://profipreklady.cz/www/ckfinder/userfiles/files/42304130265.pdfIn PDF document text
  • http://psychologyforeverybody.com/ckfinder/userfiles/files/makudilixevugukizarijiju.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/95fb10334cff701444a15b6494632f47/pazuzatedafitudupi.pdfIn PDF document text
  • http://nuocmambason.com/upload/fckimagesfile/a270ec19e4edddb48e599d78d006bf34.pdfIn PDF document text
  • https://krassimirtaskov.com/userfiles/files/gunagoletuk.pdfIn PDF document text
  • https://ycb.one/pro_pic/files/99161662026.pdfIn PDF document text
  • http://hondaototanan.com/upload/files/79318104272.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/gd5oqv73drq795rp2ipecr9p9h/52222789667.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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