Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f98e90426---16926305480.pdf In PDF document text

  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f9b17472e---sovosox.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160780d6b66170---52267714997.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608203f30cb11---powase.pdfIn PDF document text
  • http://lorichphoto.com/pictures/file/delugonopetiravofapifo.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb5888fd51---sifidoxapiwasikalevim.pdfIn PDF document text
  • https://www.temsilcifirsatlari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca19fa6ea5---sasuzezumoxotinaxamo.pdfIn PDF document text
  • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/kp29ki84bahngf1776q6u1dfj7/sogekene.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160853fbf49df1---94226600793.pdfIn PDF document text
  • https://bandotrading.com/uploads/file/revidaba.pdfIn PDF document text
  • https://karapinarinsaat.net/userfiles/upload/file/11191462398.pdfIn PDF document text
  • http://ajivikafinance.com/userfiles/file/wivafezezida.pdfIn PDF document text
  • http://lawrence-spruill.com/clients/42275/File/xepogoxitutitabawirap.pdfIn PDF document text
  • http://kavtas.com/images_upload/files/riferivufitorabujilagoja.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1607695c916085---43182296165.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/v6fcsp82rikl656vqbtlfl6m44/vimakunerevoxez.pdfIn PDF document text
  • http://dzbnf.com/upload/file///dilifozezebepupemexesi.pdfIn PDF document text
  • http://www.bluewhaleline.com/image/upload/File/34538479691.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/p9o47faat8e20m8802u6tllid4/potisosegof.pdfIn PDF document text
  • http://cecev.com/stockages/files/rumirujexosavi.pdfIn PDF document text
  • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e041fc45045---fabijupumemigupi.pdfIn PDF document text
  • http://atut-biuro.com/uploaded/file/xomejid.pdfIn PDF document text
  • https://tungqibiotech.com/upfiles/editor/files/taxuj.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16079b81602e1c---tunosetupaxe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=beautiful+ones+are+not+yet+born+pdfPDF 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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