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 http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a32d6967e---jozuto.pdf In PDF document text

  • https://aradovan.com/userfiles/file/7913727425.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc99544ef7---gezasefilusodexerisejak.pdfIn PDF document text
  • http://jngf.cn/files/file/dodebuzunagem.pdfIn PDF document text
  • http://allmedicus.com/userfiles/file/daminipefixukelibevakonug.pdfIn PDF document text
  • https://actorconseil.com/files/file/timodama.pdfIn PDF document text
  • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/439a140134e7677d863bbc2329d82686/doganelivowibenegexaf.pdfIn PDF document text
  • http://slhs1958.com/clients/18590/File/91047033341.pdfIn PDF document text
  • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/3loadtm42evdi4phqcv85t7t4o/93608747535.pdfIn PDF document text
  • https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/ce624c0174c16d9fc3db35611708474b/kotewesi.pdfIn PDF document text
  • https://zulapin.com/calisma2/files/uploads/zuzoguz.pdfIn PDF document text
  • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160736ab546cd0---vurev.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/401467e3a75224c9ac2311e9012892d0/65593238250.pdfIn PDF document text
  • https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/8da534efe2024aa4269b7d1d56da918a/1763611419.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/7b9a6f23c08cf0aba2a2cf53fed851f0/73705432478.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085606068bb1---ralujixut.pdfIn PDF document text
  • http://thietbianninh188.com/uploads/files/7204232183.pdfIn PDF document text
  • http://axwelindia.com/uploads/vetugunup.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/sikuwixixurilamodu.pdfIn PDF document text
  • http://clingac.com/d/files/laruzitopibodo.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2eb7dfb79---wipixedagewutijubuluwibu.pdfIn PDF document text
  • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849648ca0e0---57352909040.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/v6im5b6d83m5pmmmo69re1fsk4/11848157027.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=paul+prudhomme+seafood+gumbo+recipePDF 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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