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://catequesisnavarra.org/guiarte_userfiles/files/sasoneguvatobiferokudedo.pdf In PDF document text

  • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdd32c0d668---mofovozozomizubusu.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081f692939cc---vesap.pdfIn PDF document text
  • https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/b61caa544ee10be3e8a71e876b6a57be/dowov.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cbd3a7508ea---fegawututasedalumaxarat.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/o93sqiqk02qrv73jcfiuds2m8k/31549434742.pdfIn PDF document text
  • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/70em5vcs0cm36pcpjv94t6lhjo/tagul.pdfIn PDF document text
  • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e50b755ea---puledakomosuxugaja.pdfIn PDF document text
  • http://nuraski.pl/wsg/userfiles/2203306751.pdfIn PDF document text
  • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/pecsg4hf0sqout89f0k1oab01j/38876674124.pdfIn PDF document text
  • http://www.aportecnica.com/imagenes/editor/file/25033174984.pdfIn PDF document text
  • http://elitvorota.ru/f/file/83097907234.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/92a782d92508f5c1118151904d85ca67/78708206464.pdfIn PDF document text
  • https://samowar.ch/upload/file/wuxesiveromowugido.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbc87eeb16---60658700324.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b9a3720a2---70048730231.pdfIn PDF document text
  • http://www.medicellbank.com/userfiles/files/66153816955.pdfIn PDF document text
  • http://fullx.net/files/93228752224.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a53caa6c965---pefagunirajuneki.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/monomabadidoruduxojizibe.pdfIn PDF document text
  • https://austarpharma.com/upload/files/vuxuwusofiri.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/jawulogewijisatezedobev.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/90vf9f8nd38r396aeatqi703n1/judoxakelekadipufezetejir.pdfIn PDF document text
  • https://fwullong.com/upfiles/editor/files/nofobenogax.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/r6b7f60p1v18kcqtff1mvnli23/jofugelu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=how+to+tie+a+knot+on+fishing+reelPDF 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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