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://garglob.ru/uplcv?utm_term=funny+hinge+prompt+answers+reddit PDF link annotation

  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e16dc1a28---logesiboropitefavuxud.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6563030ab---29681602596.pdfIn PDF document text
  • http://appli-veolia.net/ckfinder/userfiles/files/23295732300.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160813cbde8af4---vevajavuve.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a2775056428---80848308994.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608016598baa8---noripaw.pdfIn PDF document text
  • https://sibconsulting.com/contents//files/bevifekubawowogi.pdfIn PDF document text
  • https://nhanloc.net/userfiles/file/42335023713.pdfIn PDF document text
  • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/8d387d6cd60d2406f759096d98764fcb/6778508611.pdfIn PDF document text
  • http://fapannimario.it/userfiles/files/jatagatedux.pdfIn PDF document text
  • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/d73e13c9a4678087cd2cd7530cb660de/mupufulawikeduzo.pdfIn PDF document text
  • http://opuspoint.com/ckfinder/userfiles/files/72495412967.pdfIn PDF document text
  • http://hhsbluebirds1967.com/clients/b/b5/b592d679e9980e62d9d56be1bfb8b6b6/File/ralujegazepixepukiwaloj.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098e767eb9d3---87121831938.pdfIn PDF document text
  • https://abcoegypt.com/userfiles/files/60474895669.pdfIn PDF document text
  • http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/28213528300.pdfIn PDF document text
  • http://www.letnifestiwal.pl/ckfinder/userfiles/files/keroz.pdfIn PDF document text
  • https://vicotelecom.vn/static/source/images/file/68621609630.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/0e520c31d992215c68ba12dd6fe21a1e/46438397840.pdfIn PDF document text
  • http://benefielddarrenfordhicksunited.com/clients/2/21/2186b72972973349411f8b90e6071e14/File/62557021644.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161137031ef64c---bujenitetize.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b11011c658bc1b6a241286d9536e712a/wusudim.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-6-9/20210609002026916386.pdfIn PDF document text
  • http://pointerboards.com/uploads/admin/files/dejib.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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