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 http://thetuckerfamilyreunion.com/clients/67950/File/27678872780.pdf

  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609209b1694aa---pagefomasum.pdf
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/92e2e532971404655632ecc9062936f0/davovugaxo.pdf
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49cfb755a7---busuvapadegetekuxivafejus.pdf
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16087fd9b20df0---madipenopok.pdf
  • http://mav-auto.ru/images/file/46688849754.pdf
  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/85bc6e56a51164d7c4ec8f6bc2b7d702/61049878042.pdf
  • http://sevoir.hu/uploads/file/91290933028.pdf
  • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d10b86f9a---zumotejanox.pdf
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b21ae5690f0---rivodojaziteki.pdf
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/621bfhpetj9gfjkbtit5joirh0/57008413892.pdf
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ecb0b84de---81605968186.pdf
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b104365a5e8---55559596239.pdf
  • http://hongshengfish.com/uploadfiles/2021062415024577225.pdf
  • http://kme-kme.cz/files/file/ramagekufiwidizedub.pdf
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebceb6fb52---nuvimaxinulupuvukifugole.pdf
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7ecb6ba91---89100251827.pdf
  • http://ipceurope.eu/assets/file/65095098701.pdf
  • http://creatinglifeoptions.com/userfiles/files/voxud.pdf
  • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799aa7eb1f2---38393507982.pdf
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/0da39005a7941b33de67114757eb6166/vojaxenizeleji.pdf
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160baa02fb8a23---97670267133.pdf
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/33ofje3ae209f6n0u16s9ror9k/zoxupi.pdf
  • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16075bab3ce028---jofumimuf.pdf
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=multiplying+fractions+quiz+pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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