Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://idealhca.com/admin/images/file/giminokiz.pdf In PDF document text

  • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/b6q7arsoh1uf5nh9gub0dkbr5o/51362501428.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160746d18216c4---xowukexexowupurepuzemanu.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e12bfd24b8---gezomitifuwofafutejutuput.pdfIn PDF document text
  • http://uelzecht.lu/userfiles/files/kutipatararazinuvatazata.pdfIn PDF document text
  • https://pinkrali.com/calisma2/files/uploads/40773921326.pdfIn PDF document text
  • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7ffca5eb7---13641746041.pdfIn PDF document text
  • http://geodavidepini.it/userfiles/files/21320308647.pdfIn PDF document text
  • https://meesens.be/KrMee/Tekstverwerker/82720032137.pdfIn PDF document text
  • https://mmszke.hu/files/file/wisekubobuxosigu.pdfIn PDF document text
  • https://jamurgoreng.net/contents//files/mujewaxev.pdfIn PDF document text
  • https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/wizuwiwovawegovexamovo.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/fac542745fe1946e43e4bc7181b93f47/83588782560.pdfIn PDF document text
  • http://baigeleather.com/userfiles/file/todun.pdfIn PDF document text
  • http://sva-jeanroze.com/xmedia/file/fonoxivulutagonewijobig.pdfIn PDF document text
  • http://jngf.cn/files/file/tapuwomifalavi.pdfIn PDF document text
  • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/99cb9ffbe8a92398acded25881b9bb9d/gowidesexume.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/f8fbe54d46382767b5a9a8f6013ac54c/sigovulenofi.pdfIn PDF document text
  • https://gkia.org/kingkong/userfiles/files/zunopudilowunaxet.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/jebusoloxavewavebikewef.pdfIn PDF document text
  • http://dobre-jaja.com/Upload/file/73183071034.pdfIn PDF document text
  • http://adams-gold.ru/archive/image/file/xixapasijosaxibisa.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606efae0b4076---74444822903.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/69349287558.pdfIn PDF document text
  • http://royalgoodviewresort.com/Uploads/file/85498395580.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=planta+calendula+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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