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 https://synerhu.ru/uplcv?utm_term=how+to+change+mac+address+on+android PDF link annotation

  • http://intertribo.sk/files/siturodukelirisalifo.pdfIn PDF document text
  • http://105chers.netsociality.com/upload/files/kuxesadabapifel.pdfIn PDF document text
  • http://trunglamdecor.com/uploads/userfiles/file/befonalukoxarobe.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/d9658665a28e5a0b2f86110b92d8ead1/58946901148.pdfIn PDF document text
  • http://chenruichem.com/upload/files/desuvatidedivawibimuwu.pdfIn PDF document text
  • http://cuboni.com/uploadfile/hong202109091632308399.pdfIn PDF document text
  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/penuvutoxexatikoraditit.pdfIn PDF document text
  • http://japhina.com/upload/file/bamazel.pdfIn PDF document text
  • https://www.comperat-89.fr/ckfinder/userfiles/files/nopuvosokavul.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe11aa2e47---webunorigak.pdfIn PDF document text
  • http://maekuangudomthara.com/ckfinder/userfiles/files/88399566369.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/22970100098.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/umcu665g2umlh236iir3hg8hhf/26535659188.pdfIn PDF document text
  • http://www.dkmodels.net/ckfinder/userfiles/files/jasenopidis.pdfIn PDF document text
  • http://studiorinaldibedin.eu/userfiles/files/rarejudivesev.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/0558ae6b59f4491ef2e9dd58b695a916/jekawem.pdfIn PDF document text
  • http://imobilestore.de/userfiles/file/42319303174.pdfIn PDF document text
  • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613b59c195d16---37306727590.pdfIn PDF document text
  • http://pxmonastery.org/CKEdit/upload/files/52961745303.pdfIn PDF document text
  • https://efsanepin.com/calisma2/files/uploads/zuvatuzokefimavesa.pdfIn PDF document text
  • http://www.videobezopasnost.ru/ckfinder/userfiles/files/lazim.pdfIn PDF document text
  • http://top-caster.com/userfiles/file/31162187330.pdfIn PDF document text
  • http://louisiana-arts.org.s150269.gridserver.com/siteuploads/editorimg/file/50703354537.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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