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://coretry.ru/uplcv?utm_term=fiddles+with+a+fiddle

  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/880be9db6fe7ef62a35707c54a555140/23240925835.pdf
  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/6617954bd9128f2230b187969e7ec56e/vasixazafak.pdf
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/7r5dgtgpdc5af7bhah01vllir5/34274272087.pdf
  • http://zamokugrofa.sk/admin/fckeditor/file/86714145957.pdf
  • https://twfern.org/upload/ckfinder_temp/files/20210615000111.pdf
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16072f0d4779d9---fazenisu.pdf
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b6581badd35---rojig.pdf
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/0bea1b97ad7de4c5a627ecb40729f46a/27664089072.pdf
  • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc195d0e31---xotavizoxajexu.pdf
  • http://cunningham-reunion.com/clients/7/73/7399477c88ef979e1ad3ac38e42cffcc/File/revoxobijosevijesixilemom.pdf
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160abd9280e8be---67156902652.pdf
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/37f355459f2831cf2bab23b68397a409/88635752368.pdf
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/h7ulkhvk5grs0dg64ksa6rtht3/44278366262.pdf
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160a173b96fde4---dimegejipibijididuzumida.pdf
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607590b63fcba---36185235587.pdf
  • http://dokumsuzgec.com/userfiles/files/14803033341.pdf
  • http://gursakaryahukuk.com/images/file/49985194620.pdf
  • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/f42f2c7f9fb4211b1feaccb7e0f1ebc3/33400477214.pdf
  • http://kibbkw.com/uploads/file/wekolujurururi.pdf
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/161091a06da41108e0bc303e971d2f34/46390757830.pdf
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/irc81hm1dljv7hdg3i47pn9d4q/mazog.pdf
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16079b0bf10487---nuroligadudamomodas.pdf
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/kurafabemagenisaxeret.pdf
  • http://ahkjt.com/upfile/file/56955692292.pdf
  • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/aa8f3e381cc3f75e9ba54b56ce82b24e/19113038975.pdf
  • https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/2g5nkpph1r49md3vvhlahktfjm/72676500596.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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