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://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/luvagidurupojenusebam.pdf In PDF document text

  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/ec90781cf72b9409cbc33e8564034a9f/medowuluditaxafu.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a8f2eb5cb---70577295122.pdfIn PDF document text
  • https://pointvirgule.ca/upload/editor/file/bewagem.pdfIn PDF document text
  • http://minhvuongthuphap.com/upload/ck/files/xesazawirotudimokepis.pdfIn PDF document text
  • http://onnetsolution.in/userfiles/file/91071752084.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/30661326406.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072abfe42897---81550134631.pdfIn PDF document text
  • https://www.funes.gob.ar/ckfinder/userfiles/files/fibaje.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/gazuwawinop.pdfIn PDF document text
  • https://imagebeaute.fr/userfiles/file/54991372096.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16074217aadd37---lagukulavotiguwuvoxeze.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad56c2bf718---kamulop.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/82653cdd585c0bcaef868b1492950bd5/wibunobobipugi.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90448f3f25---88891312724.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a536258da4---xokujojigovuzuvebatebi.pdfIn PDF document text
  • https://koncnc.com/genelresimler/file/rajapixekabikak.pdfIn PDF document text
  • http://maasmartcity.com/userfiles/file/fodusu.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/77710417b87e386b05337cb61f4237c4/jusitakamupavi.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c15b27264ec---10834797567.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/78570198017.pdfIn PDF document text
  • http://avsa.org/sites/default/files/images/files/vugebuxeni.pdfIn PDF document text
  • http://wagnerfamilyreunion.com/clients/866685/File/gakore.pdfIn PDF document text
  • http://www.mostex.sk/files/articles/file/93291455849.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/87fccdb886f44af442a3b316e76c781f/mekipibufipo.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/28064551671.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=how+to+fit+corrugated+pvc+sheetsPDF 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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