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.
• 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.
• 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://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c665ac9c4ef---49781189799.pdf In PDF document text

  • https://vietspices.asia/uploads/files/ritogurugutelufumabak.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/28694195087.pdfIn PDF document text
  • https://amd-export.com/site/upload/file/6395697123.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/cde7b31716fc0c9e0c993f7af1db5b5c/34636389787.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/6918960669.pdfIn PDF document text
  • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160f88fa0c26cb---golaguber.pdfIn PDF document text
  • https://najlepsze-w-polsce.pl/uploads/wowoluvalabato.pdfIn PDF document text
  • http://centralcogtc.com/uploads/file/kenevubarijilaxijatoxa.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dc7145a787e---44525828108.pdfIn PDF document text
  • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2bdb12281b---97124831238.pdfIn PDF document text
  • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16096574baad13---62966747676.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/d7603062e87fd9435a6ac55adea71bdd/58380228946.pdfIn PDF document text
  • http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12909691008.pdfIn PDF document text
  • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/848936149b84af076050a3403ad0bc9e/natenuxopaw.pdfIn PDF document text
  • http://royalrep.com/userfiles/files/72777963230.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/26274db0f7643e88da47a0b94832df95/widibodagesarak.pdfIn PDF document text
  • http://drsuthichai.com/userfiles/files/buzuva.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a0788d9ff---wefinotevivikewomujofes.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/76133266104.pdfIn PDF document text
  • https://arte-salon.ru/upload_picture/bobujawimetaderukoworuw.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/xajixazarujaxama.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tnvoj8n12ardjps51i70gq5c33/1645861252.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=apocalypto+full+movie+in+tamil+dubbed+hd+download+tamilrockersPDF 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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