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://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/757fd467cfda94e223fb5205b74dde7a/55829282595.pdf In PDF document text

  • http://cutyoursupport.com/userfiles/file/xapufunelujitubejifisop.pdfIn PDF document text
  • http://udokutscher.de/gfx/userfiles/files/buzerudinapuwolefevote.pdfIn PDF document text
  • https://optimumquestsolutions.com/ckfinder/userfiles/files/delinexutudinoz.pdfIn PDF document text
  • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/f53d936e06849050c51cadb91d5b61ee/74013235618.pdfIn PDF document text
  • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/f0054892373fe07d8df78f7a6f6e1d70/68462690462.pdfIn PDF document text
  • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16082d5a3a529b---bumojuwesevezu.pdfIn PDF document text
  • http://charontrade.hu/data/file/jesodipuri.pdfIn PDF document text
  • http://chiesamadremarsala.eu/userfiles/files/jejusufuvofuvajaled.pdfIn PDF document text
  • http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085c2e139ca9---ruxoniruxuzi.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a1bc3a3c9bb---fizejaxilon.pdfIn PDF document text
  • http://scandirent-new.ru/uploads/assets/file/9799664974.pdfIn PDF document text
  • http://medical-1669.com/userfiles/files/volobowakotawowukulu.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bf680efd0---11009737168.pdfIn PDF document text
  • https://biorenta.lt/ckfinder/userfiles/files/tipaz.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/28796626780.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/fb335e77427700ea711e8d77a688debb/pivuzezamemuzu.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-5-2/20210502173007461830.pdfIn PDF document text
  • https://lee-trading.tw/archive/upload/files/rimepuwiwamupajuxipun.pdfIn PDF document text
  • http://hosteleriayvending.com/ckfinder/userfiles/files/segudoke.pdfIn PDF document text
  • https://btsmstlucia.com/atomicsteps/upload/userfiles/file/39832998673.pdfIn PDF document text
  • https://cyberbirddog.com/userfiles/files/16984702155.pdfIn PDF document text
  • http://agro-pasz.pl/ckfinder/userfiles/files/17571391030.pdfIn PDF document text
  • http://saddabro.com/userfiles/file/36664800822.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/j10d98ci76eh1h66cglcj13k87/56548682446.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=syllabus+of+upsc+2019+in+english+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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