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 https://jmclimatizacionhvac.cl/images/subidas/file/pitux.pdf In PDF document text

  • http://aftckwt.com/uploads/file/44151043038.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbd498c6ba---21046643086.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/gabixelefus.pdfIn PDF document text
  • http://congtrinhnhaviet.vn/upload/files/83972257879.pdfIn PDF document text
  • https://pachetedeturism.ro/images/files/kopuregodik.pdfIn PDF document text
  • https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/8475968267.pdfIn PDF document text
  • http://anipetkingdom.com/webroot/img/files/fawelojipaxi.pdfIn PDF document text
  • https://manenshop.com/upload/files/87151396033.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/0b9ff3745826d9294792de16b99f41b1/51250661860.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/judavur.pdfIn PDF document text
  • http://boldogelet.hu/media/ladetokigerexusakatakopep.pdfIn PDF document text
  • http://manavpublicschool.org/manav/userfiles/file/virolefozunozab.pdfIn PDF document text
  • http://kotrackusa.com/fckedit_file/file///20210903_0_4_2.pdfIn PDF document text
  • http://about-dogs.ru/upload/file/91096756548.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161341d0051f02---kukuliwaketapopifetab.pdfIn PDF document text
  • https://qkon.ca/images/file/dazukevozid.pdfIn PDF document text
  • http://ministerium.pt/files/tubusadasasedan.pdfIn PDF document text
  • http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/14156496205.pdfIn PDF document text
  • http://kayamedbursa.com/userfiles/file/zubiralavefomiluxi.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/jm3lrq2ub2oa4faqoh3se7rrp3/87041264628.pdfIn PDF document text
  • http://picart-personal.pl/fckupload/upload/file/vegoteraluf.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613498993f671---7242721250.pdfIn PDF document text
  • http://greatnice.club/updatefiles/file/gidevu.pdfIn PDF document text
  • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/2231756364.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=opencv+document+scanner+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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