Malicious PDF — malware analysis report

Heuristics 6

• 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://sinhadventure.com/uploads/file/fivaxisajivuw.pdf In PDF document text

  • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/84d8ffc205f655d0fc2dec2374df2f1d/1800032262.pdfIn PDF document text
  • http://c2ctrading.org/cms_upload/files/xevimapu.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/f3bed782223b5ece656da0fc0cc3fd81/44560829472.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160934aa81d613---79865570179.pdfIn PDF document text
  • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c859ee74fa7---jatitudesedetaseve.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/820762019af75fad6acc93e166f62d7e/nusagimusapu.pdfIn PDF document text
  • https://francoisdaulte.com/ckfinder/userfiles/files/6456627937.pdfIn PDF document text
  • https://angelsstaff.com/uploads/file/24152034698.pdfIn PDF document text
  • http://goddesshair.net/upload/users/files/58982812971.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d444934d19---38230355588.pdfIn PDF document text
  • http://www.77ice.com/upload/files/54680635142.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/37640667072.pdfIn PDF document text
  • http://chickenwild.com/upload/contents/images/images/benarisinilujejobagum.pdfIn PDF document text
  • https://chungcungoaigiao.net/uploads/files/99046602917.pdfIn PDF document text
  • https://www.rougeindigo.com/ckfinder/userfiles/files/51108744989.pdfIn PDF document text
  • http://1984wnhs.com/clients/2/25/250e0aaa51dad033202e6c34d8602b4d/File/jeligew.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/15138195716.pdfIn PDF document text
  • http://coffee33.ru/archive/file/wivelesabipunavu.pdfIn PDF document text
  • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/8366b707a4b3e8fa0935306e065fcae5/xaxariloji.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116b8ec6a0b5---vobena.pdfIn PDF document text
  • http://fatimaartwork.com/userfiles/file/zimojavoguzebepafurojoper.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=pdf+to+jpg+my+imagePDF link annotation
  • 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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