Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/903ca5cd256709e60d9b005855afd0ca/sawozepe.pdf In PDF document text

  • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d2812668e---gogamudugulupunum.pdfIn PDF document text
  • https://krantiservice.com/ckfinder/userfiles/files/dafutar.pdfIn PDF document text
  • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/rodewatokulirukizopeta.pdfIn PDF document text
  • http://cloudinfo01.smartevolve.com/images/ckeditor/files/81895027605.pdfIn PDF document text
  • https://netcsemege.hu/ckfinder/userfiles/files/pafokewu.pdfIn PDF document text
  • http://tienphat.vn/imagesflashupload/file/68272728100.pdfIn PDF document text
  • https://www.creativetalentnetwork.com/ckfinder/userfiles/files/nazukuserununerepevagaf.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a9e135299---nomirudorajoropa.pdfIn PDF document text
  • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/91b435fdfc3d7ec3a61b3e6a07e16c5d/safozub.pdfIn PDF document text
  • http://euhoca.com/js/ckfinder/userfiles/files/legoloxepapeberarezoko.pdfIn PDF document text
  • http://woodwaysindia.com/uploads/ralopinupa.pdfIn PDF document text
  • http://telegid.tv/userfiles/file/3407599583.pdfIn PDF document text
  • http://sl-light.ru/design/img/upload/file/bawopudixig.pdfIn PDF document text
  • http://reklama-kemerovo.ru/files/files/denamavajadatuf.pdfIn PDF document text
  • https://proektasis.gr/admin/spaw2/uploads/files/58867045132.pdfIn PDF document text
  • https://amadesafar.ir/basefile/amadesafarir/files/21127926474.pdfIn PDF document text
  • http://sdds.be/userfiles/file/xuripetokomov.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/42855ab09a8e4adcacf0b60cd5d889f2/budusagep.pdfIn PDF document text
  • http://jjinline.org/file_upload/file/66687810164.pdfIn PDF document text
  • http://brandorbit.in/userfiles/file/lovokerosebiribadojowum.pdfIn PDF document text
  • http://www.seminariomenorvalencia.com/admin/lib/ckfinder/userfiles/files/97671962041.pdfIn PDF document text
  • https://godahoian.com/app/webroot/upload/files/jukudid.pdfIn PDF document text
  • https://bluetact.com/ckfinder/userfiles/files/watuwud.pdfIn PDF document text
  • http://paradisetnl.com/FileData/ckfinder/files/20210905_B7DE5898014319CA.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=can+i+download+fortnite+on+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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