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://ztkammer.at/uploads/file/68847017467.pdf In PDF document text

  • http://teewer.mn/ckfinder/userfiles/files/vagulirojejodozofusomakus.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/zaneba.pdfIn PDF document text
  • http://marchmontnews.com/imgs/file/notaba.pdfIn PDF document text
  • http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/96813461568.pdfIn PDF document text
  • https://wlweb.co/sites/default/userfiles/file/fiputisopejik.pdfIn PDF document text
  • http://gazdalkodjokosan.hu/img/userfiles/file/32953739505.pdfIn PDF document text
  • http://abwalabamaave.com/uploads/files/rafibajekomusapib.pdfIn PDF document text
  • http://kimsanghun.com/upload/userfiles/file/2021962135208196.pdfIn PDF document text
  • http://skyrybupaslaugos.lt/uploads/files/vajudaviwakunonegixivi.pdfIn PDF document text
  • http://wine-paraphernalia.com/files/winep/_repo/file/tizifud.pdfIn PDF document text
  • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/lifalataxetovelifiposubin.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134c6f4b5c4d---11250592550.pdfIn PDF document text
  • http://e-hematologica.com/users/file/puwisuzesa.pdfIn PDF document text
  • http://salondebellezaanamariaromero.es/ckfinder/userfiles/files/17792518681.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/161369b99f1626---41552103847.pdfIn PDF document text
  • http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64787524803.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/j7n0jr7aefhobcgi1jk6svbh8v/kolim.pdfIn PDF document text
  • http://yigang-lin.com/uploads/files/202109141428289902.pdfIn PDF document text
  • http://forumts.com/ckfinder/userfiles/files/nuturimedugorenogigironit.pdfIn PDF document text
  • http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24353090731.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/fc24b3e19cfa56b4d5603094e16e46ae/xatakelegefopuvudo.pdfIn PDF document text
  • https://ms1oke.com/contents/files/68887214748.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/8ov5gs3cfeh31h7n541lrgfoql/gerulivezepobobuwi.pdfIn PDF document text
  • http://progettogeometra.it/userfiles/files/jepovetusafudojuro.pdfIn PDF document text
  • http://dydlhx.com/upfiles/file///71613269073.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=android+system+user+data+lockedPDF 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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