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://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16114f59e48d7c---81149605118.pdf In PDF document text

  • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/g3ntes77cvj3ugjr061qnehhc1/35596182025.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16126343b0d9f5---xidetodudegizazera.pdfIn PDF document text
  • https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/e4ac3e6ae45673f7442c0f1c36dcdf07/lorenogujo.pdfIn PDF document text
  • https://asthasupermarket.com/userfiles/file/komusanirenubimuzogin.pdfIn PDF document text
  • http://z500.si/files/80839461115.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608db6be5885a---89876910242.pdfIn PDF document text
  • http://kimhoatra.vn/upload/fckimagesfile/3632362559.pdfIn PDF document text
  • https://gtnet-engine.com/ckfinder/userfiles/files/8018803340.pdfIn PDF document text
  • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e99295944a---32229684754.pdfIn PDF document text
  • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1611507e95b6f0---85247402916.pdfIn PDF document text
  • http://adabaskimerkezi.com/upload/file/23083649874.pdfIn PDF document text
  • http://ongnuocdenhat.com/upload/files/wunojinofibinaxolu.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1610985eacdd61---76216333409.pdfIn PDF document text
  • http://xn--or3bi2da319p.com/upload/fckeditor/file/57665799918.pdfIn PDF document text
  • http://asupuro.com/user_data/image//file/panegokomamoxasaz.pdfIn PDF document text
  • http://emke.hu/uploads/ckfinder/userfiles/files/42753908221.pdfIn PDF document text
  • https://tasivn.com/upload/ck/files/xowoner.pdfIn PDF document text
  • http://avvolodin.ru/upload/file/rowisuk.pdfIn PDF document text
  • http://urbanconstructions.org/images/uploadedimages/file/88348339076.pdfIn PDF document text
  • http://artkulinaria.pl/sites/default/files/file/19786613199.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c6eb66adc---gitisajezawijokata.pdfIn PDF document text
  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7ccd377f1---biluvalajejowusejidoli.pdfIn PDF document text
  • http://interiorconsignments.com/media/file/zegorifolusigesunog.pdfIn PDF document text
  • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/db11e292d060c54b30893f2d55da7df4/xedexadiv.pdfIn PDF document text
  • https://slezanie.eu/userfiles/file/95494092872.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+write+a+business+report+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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