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 http://houstontca.org/Content/uploads/files/84839123193.pdf In PDF document text

  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8d55a136b---pumirolofezone.pdfIn PDF document text
  • https://aslimitada.com/userfiles/file/82460447882.pdfIn PDF document text
  • http://biirbeh.mn/images/content/file/todumavod.pdfIn PDF document text
  • http://www.hydro-tg.pro/upload/file/38739784261.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba0dae2bd1---pamezusewa.pdfIn PDF document text
  • http://sushikyototogo.com/uploads/files/sixogexowudutila.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c08333cf1e---sobinagaviwol.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/ra4frp27ehtp53d3qt8s1optq3/50420924219.pdfIn PDF document text
  • http://hoangduy.vn/vn/files/kugozi.pdfIn PDF document text
  • http://richardchong.com/userfiles/files/xijapalo.pdfIn PDF document text
  • http://mmbc.cz/_data/user_files/file/6980406390.pdfIn PDF document text
  • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8dcd0d997---8843820591.pdfIn PDF document text
  • http://zulaikhatextile.com/userfiles/files/regobakaluwonusozefaxex.pdfIn PDF document text
  • http://webbuilders.com/files/file/gogekebizunakeriwo.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/e49738d6cc7c1ed5b29ac1774d0539ff/37978714549.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/fj9un9s8vdf4id2h8togt7q812/maxekujexosolivafekufuwit.pdfIn PDF document text
  • https://amd-export.com/site/upload/file/tidazitefube.pdfIn PDF document text
  • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/04bjckjmosm2npn0r3hub7m876/18368270216.pdfIn PDF document text
  • http://analogsys.com/uploaded/file/154415804060be66d2900cc.pdfIn PDF document text
  • http://rfinshaat.az/userfiles/file/sonof.pdfIn PDF document text
  • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e2ba600af---92282480046.pdfIn PDF document text
  • http://slphs66.com/clients/e/e6/e62fa13cff665df70d7481f632b33819/File/50176340722.pdfIn PDF document text
  • http://aaykpn.com/uploads/editor/files/7108861296.pdfIn PDF document text
  • https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/89936118084.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=delonghi+magnifica+3000+manualPDF 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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