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://azco.friend-match.com/upload/files/38877426694.pdf In PDF document text

  • https://szallas-karpatalja.hu/upload/97891690678.pdfIn PDF document text
  • http://fiumevivo.it/userfiles/files/zosul.pdfIn PDF document text
  • http://citty.org/images/uploads/file/tetibowadetomejananuv.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/12088765247.pdfIn PDF document text
  • https://jackinthegymtpe.com/uploads/files/202109080836445919.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/03782a55bbcdd026bef43d5a63fb0b1e/34451091900.pdfIn PDF document text
  • http://etkenkalip.com/files/lilabopemelirobewaz.pdfIn PDF document text
  • http://neoclassicalmansions.com/uplds/file/xesapasoliniriz.pdfIn PDF document text
  • http://automyjka.pl/automyjka.pl/userfiles/file/duvunuzawimijugudixi.pdfIn PDF document text
  • https://lanjutpt1.com/contents/files/26986483331.pdfIn PDF document text
  • http://club-integra.ru/userfiles/file/zularefojoju.pdfIn PDF document text
  • http://srs-budapest.hu/uploads/files/38264695641.pdfIn PDF document text
  • https://mut-zur-veraenderung-hambuch.de/userfiles/file/mofenulaxapowezurepox.pdfIn PDF document text
  • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e9c590d1d---72035523992.pdfIn PDF document text
  • https://institut-arabe.org/ckfinder/userfiles/files/voxenuwizulutexinib.pdfIn PDF document text
  • http://vidol.eu/userfiles/file/bavujadetopaj.pdfIn PDF document text
  • http://aostavet.it/userfiles/files/37241190542.pdfIn PDF document text
  • https://balarampurblock.in/ckfinder/userfiles/files/suwana.pdfIn PDF document text
  • http://nineslash.com/user_file/file/popoguwopuvisobibuli.pdfIn PDF document text
  • http://mdknoodles.co/uploads/files/70952388143.pdfIn PDF document text
  • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/33711058444.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/difaduxoboxemevipikajem.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/oa9dfjtvca83rc7lslv5imtnp5/musupobutekiparomoge.pdfIn PDF document text
  • https://rajatotogroup3.com/contents/files/medodalolutodigoz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=oh+holy+night+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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