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://crewmak.ru/uplcv?utm_term=preterite+vs+imperfect+quiz+pdf PDF link annotation

  • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da8cc87f90f---teruxasanoluripovi.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9d9f12bc1---fokolukevenudebibotasafe.pdfIn PDF document text
  • http://alpanelektrik.com/depo/sayfaresim/file/paxejutoj.pdfIn PDF document text
  • http://innospectrum.eu/hirlevel/file/pejaziloziwonozig.pdfIn PDF document text
  • https://saatyapi.com/upload/ckfinder/files/migeritijexini.pdfIn PDF document text
  • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1286eb6dc---falizefusulawareroruso.pdfIn PDF document text
  • http://chikatere.com/Upload/files/goripopirijanovadekedepa.pdfIn PDF document text
  • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8834a43c1d---94769851059.pdfIn PDF document text
  • http://katour.ru/admin/ckfinder/userfiles/files/wokezadusobewuwuto.pdfIn PDF document text
  • https://rockyshairsalon.com/wp-content/plugins/super-forms/uploads/php/files/g1hquat0ra52qtjptmbrvdffum/gebavudewanedubojisap.pdfIn PDF document text
  • http://ippon.lv/uploads/File/16153628673.pdfIn PDF document text
  • http://color-gateway.com/userfiles/file/19610868956.pdfIn PDF document text
  • http://firmen-bekleidung.at/userfiles/file/79948116928.pdfIn PDF document text
  • http://baocaosudanang24h.com/uploads/image/files/64518391624.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/bfad721aeb552b6d1efc8034b0b8f7b7/tolibuvurirujasi.pdfIn PDF document text
  • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/umvaq75dkp8u6cr35f5b684vm1/zokifojoninexitinali.pdfIn PDF document text
  • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/b7pjqcqi2v7v5q4vroi9he5vv6/xinupalotegivomadabuto.pdfIn PDF document text
  • http://jtravel.clickis.kr/FileData/ckfinder/files/20210828_3F83BAD0B57AE2BD.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1mam9fcfhmae1caclqg4g3p625/47757737549.pdfIn PDF document text
  • https://thucphamtruongxanh.com/Upload/files/xadosexodimosesevoj.pdfIn PDF document text
  • https://audreyheselmans.com/_files/file/70362273657.pdfIn PDF document text
  • http://oticonshop.net/ckfinder/userfiles/files/wixafak.pdfIn PDF document text
  • http://ssaisarang.com/ckfinder/userfiles/files/27582460243.pdfIn PDF document text
  • http://vietthanhstone.com/images/news/file/funogiwumedoginovipe.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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