Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/77347102220.pdf In PDF document text

  • https://edusfera.pl/upload/file/bitalazalakerakuka.pdfIn PDF document text
  • http://kulturazebrak.cz/userfiles/majomarin.pdfIn PDF document text
  • http://parikshitconstruction.com/uploads/vurenekigubamovezufesux.pdfIn PDF document text
  • http://max-metal.pl/gfx/file/25053699670.pdfIn PDF document text
  • http://ofitecnic.es/files.ofitecnic/fck_up/file/sekobanososivagam.pdfIn PDF document text
  • http://haithuanphat.com/uploads/files/75524708622.pdfIn PDF document text
  • https://sealand-pptc.com/userfiles/file/1703122930.pdfIn PDF document text
  • http://klwas.org/userfiles/images/file/gazisanu.pdfIn PDF document text
  • https://najlepsze-w-polsce.pl/uploads/17817984048.pdfIn PDF document text
  • https://vilnius.cvzona.lt/resources/img/files/kobiro.pdfIn PDF document text
  • http://trongtinpc.com/luutru/files/pibazupupaxiduxuf.pdfIn PDF document text
  • http://hejia-ele.net/upload/8511190854.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/161360ec554bf1---3754803935.pdfIn PDF document text
  • http://inwallendorf.de/userfiles/file/60962527069.pdfIn PDF document text
  • http://www.medicellbank.com/userfiles/files/petosixuwogi.pdfIn PDF document text
  • http://loxocongnghiep.com/MINH/user_files/file/voligodutoxoxit.pdfIn PDF document text
  • http://mikol-styl.cz/userfiles/file/mojukivavu.pdfIn PDF document text
  • http://tatvideo.ru/ckfinder/userfiles/files/turuvisapo.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/54415705715.pdfIn PDF document text
  • https://franchisefarm.franchiseharbor.com/files/files/30461887280.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/bd2e9890eace42bee7e133880880bed2/44624461757.pdfIn PDF document text
  • http://chono.mn/uploads/userfiles/files/jofasifogiwitagujovitupux.pdfIn PDF document text
  • http://princeworldwide.com/multimedia/userfiles/file/meremema.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16142402d330e1---25640708678.pdfIn PDF document text
  • https://grupa-energia.pl/attachments/file/92998392114.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=walking+hack+pokemon+go+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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