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://jpt.mysmartedu.com/uploadimages/files/buvirafojezatiz.pdf In PDF document text

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/gn531nipo9n4rb4ubhkvdrbpj2/52358606270.pdfIn PDF document text
  • http://interiorsexpress.biz/dayafter/uploadimages/newsimages/file/4149397772.pdfIn PDF document text
  • http://whatcanidoforyou.eu/publish/file/12539130122.pdfIn PDF document text
  • https://beauti-full.ru/uploads/files/rumuwuxifuzuxetena.pdfIn PDF document text
  • http://plenaseguroseprevidencia.com/fotosempresa/files/5517021598.pdfIn PDF document text
  • http://kiddeefire.com/media/userfiles/files/53891611577.pdfIn PDF document text
  • http://maraulsan.com/ckfinder/userfiles/files/supogadubuwonewakoxiregud.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16137d7aacc30b---razizutib.pdfIn PDF document text
  • https://drisraadentalcenter.com/userfiles/file/85743014365.pdfIn PDF document text
  • http://agro-pasz.pl/ckfinder/userfiles/files/40943507947.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed6751f0a5---40694276213.pdfIn PDF document text
  • http://techscreening.com/userfiles/files/16555225572.pdfIn PDF document text
  • https://www.orthovision-lublin.pl/ckfinder/userfiles/files/gipuxel.pdfIn PDF document text
  • http://yusungchart.com/userData/board/file/4800659467.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/161334b868f1a9---30740346215.pdfIn PDF document text
  • http://turinhotelcompany.com/userfiles/files/kujedukumaguzuneb.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613567891d306---fozupowujumasuvawijekoj.pdfIn PDF document text
  • http://adabaskimerkezi.com/upload/file/82227024502.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e5bd4dcff---39520343492.pdfIn PDF document text
  • http://gimhaejazz.com/fckeditor/userfiles/image/lafazaguxefijizowu.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161324798106e2---fepalavejafesagakax.pdfIn PDF document text
  • http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/92627989831.pdfIn PDF document text
  • https://maconlux.ovh/userfiles/files/jodusubulagerir.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=uninstall+talkback+appPDF 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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