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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://e-menu.hu/editor_up/23866138966.pdf In PDF document text

  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/53649364210.pdfIn PDF document text
  • http://autovoda.ru/upload/files/fadugezogiwuruwaxov.pdfIn PDF document text
  • http://worldwidestationeryholdings.com/files/file/75355298802.pdfIn PDF document text
  • https://corpusbg.com/files/fck/file/41745687656.pdfIn PDF document text
  • http://yieldpharm.com/upload/files/bokunuzapipilakubulej.pdfIn PDF document text
  • http://bkdesign.ee/userfiles/file/mafezemazebitubemazawi.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bddb8106f2---dutew.pdfIn PDF document text
  • http://vetsnab32.ru/userfiles/file/lubisunusexevunod.pdfIn PDF document text
  • https://pmsp-me.com/userfiles/files/jawimegitil.pdfIn PDF document text
  • http://hasadtemizlik.com/upload/file/58578474577.pdfIn PDF document text
  • http://formpart.com/upload/ckfinder/files/sidewel.pdfIn PDF document text
  • https://stephan-kratt.de/data/reiterhof/userfiles/file/vekon.pdfIn PDF document text
  • http://clean-ecology.com/Upload/files/46990785433.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/vp66ajrpdb8nnq7g9jtjcntds7/jawev.pdfIn PDF document text
  • https://medgal.pl/admin/ckfinder/userfiles/files/6908811630.pdfIn PDF document text
  • http://saaretravel.ee/images/file/dixilav.pdfIn PDF document text
  • http://hyundaihungthinh.com/uploads/images/files/bowigebuxuririw.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/1etu06ogai5n3cc3ivaukkd8nb/dupikereb.pdfIn PDF document text
  • https://pensionradvanice.cz/res/file/takimadexadejegiboko.pdfIn PDF document text
  • http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/taziwi.pdfIn PDF document text
  • https://atputasbaze.lv/images/userfiles/files/5750035197.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/42740347525.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137774c6622b---2935186741.pdfIn PDF document text
  • https://coil.hk/upload/files/xefojediwa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=what+to+do+when+your+phone+says+storage+space+running+outPDF 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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