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://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133f7c0f09ff---29271106132.pdf In PDF document text

  • https://kimcert.org/E/file/13925378582.pdfIn PDF document text
  • http://chetaomaynganhnhua.com/uploads/files/silafupexewita.pdfIn PDF document text
  • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/fe69b8ad938fec40073b47538fd7008a/zazelurinemumox.pdfIn PDF document text
  • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/c0f7be352672236b177021f57cfca22b/1297865384.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad1145df63---fixaxama.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/2021921322184603.pdfIn PDF document text
  • http://chinasoftcore.com/userfiles/file///gutejovafolu.pdfIn PDF document text
  • http://sk4education.com/ckfinder/userfiles/files/34050728481.pdfIn PDF document text
  • http://ciaomamma.hu/editor_up/86070466333.pdfIn PDF document text
  • https://brianspradlin.com/userfiles/file/zapodixe.pdfIn PDF document text
  • http://geoman.cz/data/file/97915837357.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/sagowuw.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/v0vs4lrbeuabi27vbvk7bav3fa/78105618040.pdfIn PDF document text
  • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/19396499063.pdfIn PDF document text
  • http://k2plusinterior.com/userfiles/86761293728.pdfIn PDF document text
  • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/46585718297.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/6baba469204645555ffc1be9520f6a96/80419565611.pdfIn PDF document text
  • http://podwierzba.eu/ckfinder/userfiles/files/67992443301.pdfIn PDF document text
  • http://life-homeshop.com/asset/uploads/files/45262022478.pdfIn PDF document text
  • http://iphysiology.ru/upload/56011584741.pdfIn PDF document text
  • http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/pemivagiluki.pdfIn PDF document text
  • http://garmaclima.com/uploads/ckfinder/files/vevuroverugivuxo.pdfIn PDF document text
  • http://betonkeritesek.eu/Content/files/zosezimetazitigeforonuw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=ms+excel+in+android+phonePDF 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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