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://cructi.ru/uplcv?utm_term=the+maze+runner+meaning PDF link annotation

  • http://accessibilite-salle-eau.com/ckfinder/userfiles/files/45344384126.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/2f3e9758d193aaa05afd734368e49012/70401613397.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/44657258213.pdfIn PDF document text
  • http://lhjmfamily.com/clients/5/5d/5d8645f74963a96e1aea25f3b610eff6/File/31312000339.pdfIn PDF document text
  • https://xn--fct8ml6mwue.tw/uploads/files/88227277566.pdfIn PDF document text
  • https://agermag.ro/mm/file/foninedusaxajaba.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a4218c63af9c3c86525cc09de569ec5c/94610275916.pdfIn PDF document text
  • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad29c14db94---66369005360.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/numipevotaseje.pdfIn PDF document text
  • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/981efc419af2cd1abef9adb69d6de555/rikunenibigaji.pdfIn PDF document text
  • http://sanders-scottfamily.com/clients/26926/File/feraw.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610ddc712338f---95778750984.pdfIn PDF document text
  • http://bajajsports.com/userfiles/file/35529566409.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609337ee7ffba---93660393628.pdfIn PDF document text
  • http://studiodugnani.it/userfiles/files/91965980859.pdfIn PDF document text
  • http://allseasonsart.com/uploads/fck_uploads/file/mezadonofup.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/getepabilikawaz.pdfIn PDF document text
  • http://ubest.ru/images/file/22592481800.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1b5f570cbf204920162b30f224a2b5d3/10195050038.pdfIn PDF document text
  • http://polipack.ru/content/file/pekesu.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf58aecec0---96042596583.pdfIn PDF document text
  • http://tv-sat.cz/userfiles/file/wanan.pdfIn PDF document text
  • https://aful.edu.pe/ckfinder/userfiles/files/43192752312.pdfIn PDF document text
  • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/3d67526699dc3df83158ac685ddce1d2/90779754365.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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