Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://laborke.ru/uplcv?utm_term=types+of+sentences+simple+compound+complex+worksheets+pdf PDF link annotation

  • http://doyen.cc/images/upload/File/71830694255.pdfIn PDF document text
  • http://guides2alpes.fr/uploads/file/jafawogo.pdfIn PDF document text
  • http://bulk-supplies.com/userfiles/file/jopovikevu.pdfIn PDF document text
  • https://realxenon.ru/uploads/files/pisokepopenorifop.pdfIn PDF document text
  • https://interior-mark.com/ckfinder/userfiles/files/surororogukamexevumibad.pdfIn PDF document text
  • https://hzautomatisering.nl/userfiles/file/tekadawagodalududipodofe.pdfIn PDF document text
  • https://primer-spb.ru/files/files/49638131981.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/9fkgappn9pgmjae03f7i54l1r6/78028601759.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/4jg05a2vs70en24iu27qtpdckv/62316611642.pdfIn PDF document text
  • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/hsihe4ldqcujifs09g5jj63i8d/61130829001.pdfIn PDF document text
  • http://stewartreunion2020.com/clients/2/2a/2a0d9dcdd57715375c9f4393c24df0f2/File/81420073968.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/97d3a8beb456bc0d16de62007187d2e6/26761175644.pdfIn PDF document text
  • http://piannocreativo.com/js/new/fckeditor/userfiles/file/64421320095.pdfIn PDF document text
  • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608321971ddfd---24781347752.pdfIn PDF document text
  • http://strahovka66.ru/userfiles/file/42547697679.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b93190462d---tilabemunodin.pdfIn PDF document text
  • https://matfreklam.com/calisma2/files/uploads/nobowiguxigopiv.pdfIn PDF document text
  • http://longarmquiltacademy.com/fckeditor/userfiles/file/15407486786.pdfIn PDF document text
  • http://duythuc-bearing.vn/uploads/userfiles/file/puxede.pdfIn PDF document text
  • http://dlikefulproductions.com/clients/875850/File/rukuxixiripogonugom.pdfIn PDF document text
  • https://sardavetri.it/userfiles/file/88892864213.pdfIn PDF document text
  • https://laser123.com/geektic/files/temewegagesonove.pdfIn PDF document text
  • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/57204faa19e0d5ac076e1f77709a1c50/romifuva.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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