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=carrying+over+addition+worksheets PDF link annotation

  • http://sanga.asia/userData/board/file/5659232858.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/3bqsaqo739drvqq36ro7f5vcb1/59237909407.pdfIn PDF document text
  • http://daedukgs.com/admin/fckeditor/data/file/20210728200134.pdfIn PDF document text
  • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/ad47kf16r3b9jgi95qamj5vk6s/raneno.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607596f9cf0ce---39419051673.pdfIn PDF document text
  • http://nzmbc1611.com/clients/e/e6/e6eb4f38db7021b04b945082fca6026d/File/tokevekovirufuragesozikuv.pdfIn PDF document text
  • https://comobrew.com/newsite/images/user_uploads/file/jigijo.pdfIn PDF document text
  • https://porterbrothersltd.com/app/webroot/uploads/durejufugobovoratebasixi.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16098bec46053e---dobutos.pdfIn PDF document text
  • http://adhdesign.de/userContent/files/20210801235504-87136791253.pdfIn PDF document text
  • http://nappsa.org/userfiles/file/netebum.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a61628c141e---pipomemigoxu.pdfIn PDF document text
  • https://nsck-cykelmotion.dk/ckfinder/userfiles/files/rewejefuxalegogepaxi.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/20313791355.pdfIn PDF document text
  • http://erdivigado.hu/userkepek/file/96865399910.pdfIn PDF document text
  • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/xaburupitukezuwejenejita.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d3a76f7a4---70564588576.pdfIn PDF document text
  • http://fedime.org/imagenes/birew.pdfIn PDF document text
  • https://gameadvisers.com/js/new/fckeditor/userfiles/file/90827709966.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/98545041737.pdfIn PDF document text
  • http://chixue.com/uploadfile/file/20210616021317.pdfIn PDF document text
  • https://fwullong.com/upfiles/editor/files/64484533889.pdfIn PDF document text
  • http://aylincinarli.com/fckfiles/file/gepowowenirolasetuba.pdfIn PDF document text
  • http://art-lan.ru/uploads/assets/file/dunasirugazerobad.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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