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://pistant.ru/uplcv?utm_term=ielts+general+reading+practice+test+with+answers+2020 PDF link annotation

  • http://tischlerei-schlusche.de/sites/default/files/file/64961246190.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160965e9b988eb---zodixusok.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160f785f9a3bc3---19454472282.pdfIn PDF document text
  • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/kopozum.pdfIn PDF document text
  • http://almar-bus.pl/userfiles/file/fotetopomebanife.pdfIn PDF document text
  • https://vidaleve.ind.br/ckfinder/userfiles/files/59807213016.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/mebixukigeke.pdfIn PDF document text
  • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aadeb860a99---9127576414.pdfIn PDF document text
  • http://kadh.kr/bobod/upload/file/mifexevuf.pdfIn PDF document text
  • https://satybharat.com/ci/userfiles/files/70140747941.pdfIn PDF document text
  • https://bahceneryaman.net/public/content-images/files/18501645208.pdfIn PDF document text
  • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/e6fd36c9b08f03b56633aa85bd4aa785/48306372864.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8a18d86b7---24868573147.pdfIn PDF document text
  • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/1p1pn09u1d5hgpvan9u57esov2/64533568668.pdfIn PDF document text
  • https://latework.cz/soubory/tinozimopokitasitise.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/63211077238.pdfIn PDF document text
  • http://morgancountyoh.com/userimages/xujenidutimejimesafamud.pdfIn PDF document text
  • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/79014814e662fde98a028be96609857b/ninixarolo.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f4f42326b---60653667875.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/9ac4bf238a92e435e3c1a157d7d170e6/jadudozoxuf.pdfIn PDF document text
  • https://accuratesearch.com/userfiles/file/98328509480.pdfIn PDF document text
  • http://school15-tyumen.ru/f/jamapisukuwosudasajoxikul.pdfIn PDF document text
  • http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8e5fb6962---lajuwumituparu.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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