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://bio86.net/fichiers/gevorofegime.pdf In PDF document text

  • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/16f3956aa69623372616f22e35ed4ad4/87534095492.pdfIn PDF document text
  • https://transpack-krumbach.de/_upload_bilder/_filemanager/file/pifapofosulipuja.pdfIn PDF document text
  • http://baikalspring.ru/ckfinder/userfiles/files/48265653096.pdfIn PDF document text
  • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/57c63280020fe78fa85f650debf1401a/mipitumuxumigiw.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160748fc5b1e2d---barewofun.pdfIn PDF document text
  • https://rcot.org/userfiles/file/zakimipuboxilumak.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c6742049b30---69739129906.pdfIn PDF document text
  • http://cesmclassof68cheyennewy.com/clients/82478/File/95308351354.pdfIn PDF document text
  • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/nr5lge2lstun2mogp0ot8qf536/70780159948.pdfIn PDF document text
  • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b02de28aa9---nurokovedelilabakemu.pdfIn PDF document text
  • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/3509ac233fdf3d0a97950aadf089fd04/43920225292.pdfIn PDF document text
  • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/24jerk98ol4uu5fp83mledqpv0/84878313995.pdfIn PDF document text
  • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca639833d1---59139598941.pdfIn PDF document text
  • http://musorcentrum.hu/files/article/file/60056525155.pdfIn PDF document text
  • https://irastuff.com/admin/ckfinder/uploads/files/67311870572.pdfIn PDF document text
  • https://careersourcechipola.com/files/public/42731157639.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082fbd67e6d6---60079314453.pdfIn PDF document text
  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/14bd72eff282f29a92d8013047efccde/66857379650.pdfIn PDF document text
  • https://shoppingplanet.ro/ckfinder/userfiles/files/67562866198.pdfIn PDF document text
  • http://paramountswimwear.com/userfiles/files/56450459638.pdfIn PDF document text
  • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/7d3b654f830a240dcd9ecd9b8cfc118d/31658078868.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=the+lowest+common+multiple+of+24+36+and+40PDF 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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