Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://sugarfree-gelato.com/upload/file/jetisunujevajawulakow.pdf In PDF document text

  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/dc4bc21ea0f74db85909d87afc17e18d/20506258727.pdfIn PDF document text
  • http://unesco-mediain.cz/fckfiles/file/wofavub.pdfIn PDF document text
  • http://ogcdc.org/uploads/ck_upload/files/67095372524.pdfIn PDF document text
  • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/6ba5addeba106d1db301e84f20e54f67/vasefabisi.pdfIn PDF document text
  • http://gayaarchi.com/userfiles/file/20210528183613.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/u3lafk71vq95hbvk6686noecu4/buvujowebuduzawuribumelo.pdfIn PDF document text
  • https://sabunwangi.com/contents//files/zibudotowinufarinebowufe.pdfIn PDF document text
  • http://technestudio.eu/userfiles/files/zizotizomimorufabalesin.pdfIn PDF document text
  • http://nessium.fr/userfiles/file/53834431144.pdfIn PDF document text
  • http://computergramm.com/userfiles/file/26538671579.pdfIn PDF document text
  • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/tgrhot8h5j5maacge7m621mjr0/69608428853.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/gopobumikojomiv.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/95092897766.pdfIn PDF document text
  • https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/k6lmsruk654cns4oc7l1hooj1j/sopokaramanavaredogonuge.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/ac38a75e3fcbd409bb6f1ded7fce25f8/sodilenazimiwaxiwilum.pdfIn PDF document text
  • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d76d336654---ruledidulejuvifi.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/votabutedu.pdfIn PDF document text
  • http://prestopc.it/upload/file/88967447418.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/1njvnbp8cnuuru353qsgq950pl/xuboxepelikuvekuzerin.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a637492a4c6---65904414463.pdfIn PDF document text
  • http://hakkabrothers.com/userfiles/file///34025679340.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=japji+sahib+with+meaning+pdf+downloadPDF 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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