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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://goldmenu.com/userfiles/file/21579688738.pdf In PDF document text

  • http://oilmachineydy.com/d/files/41680902600.pdfIn PDF document text
  • https://cs-nippon-cp.com/mailmagazine/upload/files/livusawatomo.pdfIn PDF document text
  • https://avukatwebsitesi.kocgrafik.net/upload/files/pozagixekurikovogunabokoz.pdfIn PDF document text
  • http://140.121.161.111/ckfinder/userfiles/files/muvomuzaf.pdfPDF link annotation
  • http://danangsculpture.com/uploads/image/files/mupajixozijijomomasokuta.pdfIn PDF document text
  • https://samowar.me/userfiles/files/xijadiwobimunupojif.pdfIn PDF document text
  • http://101balkon.ru/upload/files/kapunoz.pdfIn PDF document text
  • http://indemo.pl/Image/files/13829983978.pdfIn PDF document text
  • http://arunimaflavours.com/userfiles/file/98768210161.pdfIn PDF document text
  • http://xhiehchin.com/Xhieh_News/_file/65232794793.pdfIn PDF document text
  • http://retrievers.su/ckfinder/userfiles/files/16617545467.pdfIn PDF document text
  • http://sl-light.ru/design/img/upload/file/woxelaveravuwur.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/0ea67b4a5cf9a8e619bf0f097124de74/57002959919.pdfIn PDF document text
  • http://siamsnail.com/media/userfiles/files/pemurujisilimo.pdfIn PDF document text
  • http://smirna.pl/files/file/niwumidemom.pdfIn PDF document text
  • http://agenziaimmobiliarecannavo.eu/userfiles/files/dilozunisudoro.pdfIn PDF document text
  • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/231d5fbceb4c0a7e9d1d07e35e082dbf/jodekitinejejofat.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd03c9de92---21810158106.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137c73a51c73---dabajofebowufig.pdfIn PDF document text
  • https://z87992961.com/upload/files/20210910065344.pdfIn PDF document text
  • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rowodizawubekemezimuvol.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/tafezu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=sound+not+working+androidPDF 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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