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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://incoyun.com/calisma2/files/uploads/kaxebilixosun.pdf In PDF document text

  • http://firesecurity.sk/userfiles/file/86387318052.pdfIn PDF document text
  • http://zatexpress.com/upload/userfiles/files/67103124898.pdfIn PDF document text
  • http://bodybybodyology.com/ckfinder/userfiles/files/67651442977.pdfIn PDF document text
  • https://grdr.org/paidel/ckfinder/userfiles/files/sonaturiwokakaduzujozen.pdfIn PDF document text
  • https://ever-progress.com/upload/files/dilag.pdfIn PDF document text
  • http://zhihepvb.com/upload/ckimg/files/202109081552134909.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413a6096f0c---59319013907.pdfIn PDF document text
  • http://elitacasa.it/images/file/32665567493.pdfIn PDF document text
  • http://immodraft.nrw/images/architekten_agentur_images_/file/79782015435.pdfIn PDF document text
  • https://franchise-vietnam.com/app/webroot/img/files/remawovuxulu.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16135d9c6611b1---92262246689.pdfIn PDF document text
  • http://asiavent.com/UserFiles/file///37963142195.pdfIn PDF document text
  • https://noventa.cz/media/files/file/gadena.pdfIn PDF document text
  • http://chiangmai-clean.com/user_img/files/63986005948.pdfIn PDF document text
  • http://fulns.com/uploadfile/fckedit/file/16306832932Sw6.pdfIn PDF document text
  • http://librojuridico.com/aym_images/files/9288297021.pdfIn PDF document text
  • http://interstyle.org/content/xuploadimages/file/87825758372.pdfIn PDF document text
  • https://www.potravinyav21.cz/ckfinder/userfiles/files/muxoluvapofukodabeb.pdfIn PDF document text
  • https://olivermilk.vn/tctt/sites/aaa/file/58534724415.pdfIn PDF document text
  • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/22891603311.pdfIn PDF document text
  • https://esterkins.de/ckfinder/userfiles/files/fuzutenibodiri.pdfIn PDF document text
  • https://hotelmitrutarija.com/uploaded/files/13436621433.pdfIn PDF document text
  • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/584d9122f9fe80f7222374c12cf7b643/47821093206.pdfIn PDF document text
  • https://estudiowebcolombia.com/ckfinder/userfiles/files/bivewovevofa.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/45043338933.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=free+robux+generator+no+verification+no+surveyPDF 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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