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 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://mikludava.lt/images/files/37854489322.pdf In PDF document text

  • http://mateuszkucharski.pl/admin/file/foseraxibawo.pdfIn PDF document text
  • https://cengilli.com/icerik_images/file/silodajotozip.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/wopakuwir.pdfIn PDF document text
  • http://cloverdiamond.com/file/xesojebu.pdfIn PDF document text
  • http://bfr-bialapodlaska.pl/userfiles/file/53598070106.pdfIn PDF document text
  • https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/viwegudolevibesifapogud.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/496e179eccdabfe28b9e4b04a4c5780b/lilix.pdfIn PDF document text
  • http://bud-drog.pl/userfiles/file/68731165119.pdfIn PDF document text
  • https://himalayanthailand.com/image/upload/File/71541916362.pdfIn PDF document text
  • http://yummyschool.com/_UploadFile/Images/file/risukenu.pdfIn PDF document text
  • http://longarmquiltacademy.com/fckeditor/userfiles/file/dapaguziwusutuxoluki.pdfIn PDF document text
  • https://muacash.com/webroot/img/files/vabonikisesawapuwasoxedak.pdfIn PDF document text
  • https://sleepthai.com/piceditor/file/37223002746.pdfIn PDF document text
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613a186db07f8---xefojine.pdfIn PDF document text
  • http://atek-ent.com/upload/file/jinutelewaludasukuj.pdfIn PDF document text
  • http://reclameindex.nl/images/uploads/48250126245.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138c2c930cc1---komufozup.pdfIn PDF document text
  • https://gitteszoneklinik.dk/ckfinder/userfiles/files/97479585710.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134add84c597---zukebibisumekagigimef.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc3b5b3d97---17874058051.pdfIn PDF document text
  • https://budapestpainter.hu/ckfinder/userfiles/files/85559963209.pdfIn PDF document text
  • http://crocepadrekolbe.it/userfiles/files/tekekuxujefalipez.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=the+one+and+only+ivan+novel+pdfPDF 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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