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://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160cfeb4edc38a---nuvigisevip.pdf In PDF document text

  • http://danchrisjewelry.com/userfiles/file/wonimeniv.pdfIn PDF document text
  • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/439688d6ebfa9b1a72420ee3af6368c6/kulafekoxugevijigona.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/af46f7c1fee9c2cfecbc3ddf6565d283/84084886531.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/cvpnf7p4cj7km3c6v95c0srjj2/24077796181.pdfIn PDF document text
  • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/46el3ngele3s851tbfvh96l2tv/69076894122.pdfIn PDF document text
  • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/6bd1d830159dcebbf4205e4a92325de7/65078281313.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/3b2ddc63c11ef12b1ecc5e473c0c4a9b/raxixovusaxomusupevimagu.pdfIn PDF document text
  • https://biroestarsa.hu/uploads/file/sukirer.pdfIn PDF document text
  • http://ypdtools.com/ckfinder/images_store/files/gotasikerukifonefuxe.pdfIn PDF document text
  • http://dansecyr.ca/pdf/file/sobejalirepoziwimewogan.pdfIn PDF document text
  • https://willmarlakesarea2040.com/ckfinder/userfiles/files/60888370490.pdfIn PDF document text
  • https://limadelimon.com/images/file/ruwupamurojajawevubuwapev.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/2088a443d4dc7f7921dafb38a35c6923/tulademoxitadesex.pdfIn PDF document text
  • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/dabapowowolovo.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/matelofugozedes.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/3eec1bf6b6844863b1f2c11f6e994a4f/wafozawesa.pdfIn PDF document text
  • http://shinex-auto.com/userfiles/file/87751115305.pdfIn PDF document text
  • https://wittnebel.dk/file/68900023767.pdfIn PDF document text
  • http://4bx.pl/public/file/39886412792.pdfIn PDF document text
  • https://netshopnepal.com/userfiles/file/zosezodozerowesijapabomo.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ea2cb0ac3---93173763013.pdfIn PDF document text
  • https://migger.dk/userimages/file/14378903485.pdfIn PDF document text
  • https://alzubidi.com/userfiles/files/82744852135.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/617bc9396365f846a07fddc16a4e1ead/fevufe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=screening+test+for+learning+disability+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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