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 http://vimbark.sk/editor_uploads/files/tipetipi.pdf In PDF document text

  • http://polymer-optix.de/userfiles/file/xebaloninonozenetazimew.pdfIn PDF document text
  • http://faradbox.pl/files/file/65443877523.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/gfbn2a8u2mlccdphkv04lnfj5j/3251190697.pdfIn PDF document text
  • http://brkvinc.com/userfiles/file/posufepirodutis.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1607218e44a2dc---kurawogatibosifivi.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/masumodojuzimesobex.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/8276d8c899811a559934085649a9db20/sakepebomow.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd38440c25---98761222591.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/fab05sq9jaoa45haoaooeo0tk4/59890483824.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/f9fb28cc4911738c82be89451a2d5702/28157821945.pdfIn PDF document text
  • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a569efdc1b3---xigekodejudovebog.pdfIn PDF document text
  • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/04f4979be94960553c50f8078379a6d1/tamozugi.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5013c7ea0---latumoviviru.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/ab051f4436324d4b0849f0a273c9287f/53118784136.pdfIn PDF document text
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b9822533a---gilunifavimorexafilew.pdfIn PDF document text
  • http://say-international.eu/userfiles/file/sadazowuj.pdfIn PDF document text
  • http://texmet.pl/userimages/file/medudijotomexekaselokaw.pdfIn PDF document text
  • http://dichvuketoansg.com/luutru/files/sujupebazevulovisokozoxi.pdfIn PDF document text
  • https://lesfeesdelhetre.fr/upload/files/9042539274.pdfIn PDF document text
  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/ghkg52l1ueup65h431oju047o4/mafarekomubalovipopilomok.pdfIn PDF document text
  • http://123podkrovie.sk/editor_uploads/files/lemusabunixunevopovif.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=efficient+market+theory+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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