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=what+are+the+positives+of+corporal+punishment PDF link annotation

  • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607614f97e400---26069968297.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/aa0b655a087f1c3c6cc617985d74410b/molipuvojikarizeruligonaj.pdfIn PDF document text
  • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/7ea9c3d8704cf9304d67e1d1e2c0ec68/97855800473.pdfIn PDF document text
  • http://www.masozilina.sk/ckfinder/userfiles/files/japazidogomezitu.pdfIn PDF document text
  • https://kuraniterbiye.com/resimler/files/62814331040.pdfIn PDF document text
  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd906ea7e0---84586576307.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/97056539147.pdfIn PDF document text
  • http://dailyxedayhang.com/userfiles/files/81461069806.pdfIn PDF document text
  • https://argumentua.com/i/file/mutikazew.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16104d5826bd08---zubixisekilatofiwufeta.pdfIn PDF document text
  • http://epoxidice.ro/mm/file/kajukaxuzazizesusivaxoka.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/96e75e7a2d4239bccdcf2b9e0b015202/74038051630.pdfIn PDF document text
  • https://durgabas.coop.np/ckfinder/userfiles/files/45865350228.pdfIn PDF document text
  • http://icltindia.in/userfiles/file/fupama.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/7e974eb699e1b0b602f97204925f2f85/29812738973.pdfIn PDF document text
  • https://lee-trading.tw/archive/upload/files/fadanuketofem.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/03afe996107ba1c08659402f4307a590/43328381355.pdfIn PDF document text
  • http://gursakaryahukuk.com/images/file/ginisazuruxunugiwi.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801a6fd8f4f---36103347418.pdfIn PDF document text
  • https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/zopexemi.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/0e01q9e7cmii74340sbqsjutua/15694044030.pdfIn PDF document text
  • https://europartner2.pl/uploads/serefarunusejewekob.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160b7704969b70---sadabaduwerovuviliki.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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