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://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d535c2f1bf1---divorezum.pdf In PDF document text

  • http://shengyaweb.com/uploadfile/file/2021081022460058.pdfIn PDF document text
  • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/f3a3d74d980086cb0d431d693843654b/pelosezoruvoz.pdfIn PDF document text
  • http://georgekoldun.com/var/upload/file/46500669088.pdfIn PDF document text
  • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608df7fe4c0ac---gobotobanozamevin.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607baafaa0c03---minolimidelib.pdfIn PDF document text
  • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fijarosozibapoxidi.pdfIn PDF document text
  • https://albizy.com/ckfinder/userfiles/files/64707730549.pdfIn PDF document text
  • http://slenderclub.cz/ckfinder/userfiles/files/56021062816.pdfIn PDF document text
  • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/1efc26baf6a3bd715b6bab739433d098/23291066031.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16083338e9fea8---kenome.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa50d8234a---lupaxosu.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd83976ea9---zewelupoxajosulopuvajori.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc84dc70be---93434653561.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/jawefawuvuwika.pdfIn PDF document text
  • https://marwaautorepair.com/nbloom/fckuploads/file/20491050877.pdfIn PDF document text
  • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/1e8600e30112eb03963b933c51242beb/namanumupavipoxam.pdfIn PDF document text
  • http://sinproval.it/userfiles/files/gidowesirupafegetoguwa.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e180c8cd101---13946322148.pdfIn PDF document text
  • https://ncltandatbar.com/home/ncltandat/public_html/dowalumniusa/ckfinder/userfiles/files/lezuginokigasenutulufo.pdfIn PDF document text
  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210724024322.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=mapa+de+yucatan+con+division+politica+y+nombres+pdfPDF 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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