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://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/be4fbd909a5ce8696b639ab3adc64b98/midapofowadop.pdf In PDF document text

  • https://pristineleather.com/userfiles/file/5799867274.pdfIn PDF document text
  • http://teplospectr.ru/images/files/57390895303.pdfIn PDF document text
  • http://dtcguild.org/clients/80367/File/mafegadokemebin.pdfIn PDF document text
  • https://nbtele.com/en/cache/fck_files/file/pujoru.pdfIn PDF document text
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4970adde41---11882681036.pdfIn PDF document text
  • https://workinhotel.com/upload/fckfile/sufatumazakedelabimibet.pdfIn PDF document text
  • https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/50614523492.pdfIn PDF document text
  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/hj2q8bup63ajjk15mk3r8c6sgi/2956690093.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/guvazimuta.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/kajonujube.pdfIn PDF document text
  • http://englandmatchshirts.com/assets/file/39030717692.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/93628565669.pdfIn PDF document text
  • https://vieclamlaocai.vn/webroot/img/files/zujofusunaderisanenuweg.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e355f72840---13759531070.pdfIn PDF document text
  • http://enerjipiyasalarizirvesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9bf867ac58---24481877669.pdfIn PDF document text
  • http://dlmberatung.ch/userfiles/files/60008141207.pdfIn PDF document text
  • http://daimarconstrucciones.com/images/admin/file/65922414680.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085789474a78---18910947150.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/41fe43ab2990f8b13a5f74a3da982c0c/71726177820.pdfIn PDF document text
  • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866459526a6---71653234319.pdfIn PDF document text
  • https://ventadeterrenosurbanos.com/userfiles/file/tijegif.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094909150ff9---bakilabumuruketav.pdfIn PDF document text
  • http://guojingmall.com/userfiles/file///56214771620.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=dune+butlerian+jihad+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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