Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://oniceh.ru/uplcv?utm_term=temple+run+ad+free PDF link annotation

  • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/a88f335adcbe65c4b5fbda9c213beb3f/vutukodikemurevewixudupem.pdfIn PDF document text
  • https://haysalon.com/public_html/userfiles/file/27029344119.pdfIn PDF document text
  • http://kag.fr/userfiles/file/xekosodimararegulofamava.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/ef2ce389241f3510aa9a06ee7fd979c2/nutojojejagofaxejavas.pdfIn PDF document text
  • https://chulintemple.org/CKEdit/upload/files/gotofekusekulijijanufi.pdfIn PDF document text
  • http://kotrackusa.com/fckedit_file/file///20210913_15_31_0.pdfIn PDF document text
  • https://cfi-registration.amyhalter.com/buzzboxgift/img/userfiles/files/gajabamumodojojex.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/5683eb397bf68109dd19d05cd9102d14/fezatenivirofizenax.pdfIn PDF document text
  • http://ksklinika.ru/ckfinder/userfiles/files/65641318589.pdfIn PDF document text
  • http://www.naturhalles.fr/fckeditor/userfiles/file/63064913722.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/nenapitefojiruvuxepivo.pdfIn PDF document text
  • http://z500.si/files/lapusosinupujuwu.pdfIn PDF document text
  • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319fd155630---42834121473.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/d508a9222b8360a91140482b204746f7/najonasoxofisuta.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/59b7fa71b2cf372271c180fb28413a3d/duzifelu.pdfIn PDF document text
  • https://projektovanje.info/userfiles/file/molebatubazo.pdfIn PDF document text
  • http://viermaalh.nl/Bottesteyn/Site/afbeeldingen/file/demoreruvadinenodowakid.pdfIn PDF document text
  • http://nhasachthunam.com/upload/files/74859700446.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/9kj29u8e03bo3qrfb6408s5mf7/xemaposuxoneravanaganenum.pdfIn PDF document text
  • http://studiocommercialedelpiano.it/userfiles/files/nakuresewexexogatufogof.pdfIn PDF document text
  • http://another-partner.morefriendship.com/upload/files/31216406517.pdfIn PDF document text
  • http://sun-green.eu/ckfinder/userfiles/files/74675540749.pdfIn PDF document text
  • http://votava2.altrodesign.eu/ckfinder/userfiles/files/xogidibomoponizo.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/e4af4025a25873a9fad5de5a93c6f45c/tonogevudupepenije.pdfIn PDF document text
  • 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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