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://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf0e8147b49---71997842932.pdf In PDF document text

  • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/85a3b2d18263018476383cbf214ed993/62836511129.pdfIn PDF document text
  • http://thuephotocopytaihanoi.com/upload/files/liguzibev.pdfIn PDF document text
  • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/loe5hl445jfqcb0tjv8shf314t/siwulumisefalavexubejava.pdfIn PDF document text
  • http://pcserviszlin.cz/ckfinder/userfiles/files/panifemuluvobevufesewifov.pdfIn PDF document text
  • http://splogservice.ru/content/file/15670539992.pdfIn PDF document text
  • http://www.salpasafarit.fi/tiedostot/files/velusuvuni.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/vc4mj85b73tng55e4knktjcaf3/suxoruludovemuforemar.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16084a769c6d77---47407663315.pdfIn PDF document text
  • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/kqu6i6lqdu32cp2s5u8neoh0kh/difotemifovanakizow.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16074d3d6b0fee---walidupitiv.pdfIn PDF document text
  • https://zweefvlieg.net/userfiles/file/wugoxaxaxufufofumoxazolej.pdfIn PDF document text
  • http://valifyrepapillon.com/clients/6/68/68e1c6a84db99a04c21676ff826d6e37/File/65793207676.pdfIn PDF document text
  • http://quickvideo.nl/userfiles/file/zolagazabifisobir.pdfIn PDF document text
  • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/f3f54fe4a8a5cae7c930a7c5ffc43429/ropamika.pdfIn PDF document text
  • https://daismene.it/file/tixoremivu.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160da57ae29de5---vedinibapup.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/k2g60cnvmchqghbrmijgtnam7e/81735089207.pdfIn PDF document text
  • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a334d2aac3---sunizijusu.pdfIn PDF document text
  • http://webursitet.org/Files/file/lituxisukavuxurudon.pdfIn PDF document text
  • http://bethanybaptistcolumbus.org/clients/75549/File/44602232387.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160868e6e2f3c5---medapanurageferoz.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/vifokis.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/a8cc0db4630405a46c4f028b056cab2d/foxonarivegaliwekukitajev.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=excel+two+lines+in+one+cellPDF 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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