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://chcial.ru/uplcv?utm_term=ppt+on+water+pollution+in+india PDF link annotation

  • http://abwingsmd.com/uploads/files/4259724138.pdfIn PDF document text
  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096721794025---44474966067.pdfIn PDF document text
  • http://pusheng168.com/uploadfiles/20210814080114.pdfIn PDF document text
  • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160a9601044f02---76313989544.pdfIn PDF document text
  • https://avukat.dnsaktif.net/upload/files/kipimugoxejimegaxuj.pdfIn PDF document text
  • http://unipsyclinic.com/userfiles/file/20210629080248.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/8678098529.pdfIn PDF document text
  • https://getadoc.in/ckfinder/userfiles/files/vegexikipeporoxan.pdfIn PDF document text
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/9smjgo6npc9uo5behi8sbpjjv6/vaxuvalotiwikona.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16087b602bfda0---7791621572.pdfIn PDF document text
  • https://istanajp2.com/contents//files/vekitirep.pdfIn PDF document text
  • http://kartelabasligi.com/images_upload/files/96004534201.pdfIn PDF document text
  • https://dgssu.com/upfolder/e/files/20210812182411.pdfIn PDF document text
  • https://jphotographyllc.com/userfiles/file/6982224328.pdfIn PDF document text
  • http://1careglobal.com/upload/files/garajizixebegavebetodez.pdfIn PDF document text
  • https://chezgregoire.fr/userfiles/76903531730.pdfIn PDF document text
  • http://st-ark.it/userfiles/files/vejavewopusimonulawanuge.pdfIn PDF document text
  • http://hai-bi.com/uploads/files/202108290251141856.pdfIn PDF document text
  • https://immobiliaresancarlotrieste.it/file/58710569039.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/zemin.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/73qfe9uk4ptd0h5s82svakr8d3/kafobiw.pdfIn PDF document text
  • http://kamennykoberec.eu/editor_uploads/system/files/6934121149.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8e6d9f19e---62086382416.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a52839127e3---39872508929.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021071911331092.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/423605c9ee57fe96f2f98c53e06121e8/vopadanaf.pdfIn PDF document text
  • https://medlineplus.gov/waterpollution.htmlIn 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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