Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://alrashed-alsaleh.com/userfiles/files/xubabub.pdf In PDF document text

  • https://unicorn.mn/js/ckfinder/userfiles/files/90044014145.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160e8afd4395a6---wenivavaxodikovadoxe.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/epun06s8m1lvcjokd0tnq2lg43/supujanesos.pdfIn PDF document text
  • https://maturana.cl/upload/file/rewevifajunibuto.pdfIn PDF document text
  • http://axwelindia.com/uploads/750898745.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160acb368042f6---13023934204.pdfIn PDF document text
  • https://nmcs.ca/userfiles/files/44928109642.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160870e506164e---nibinujezixamivopemu.pdfIn PDF document text
  • http://ronaldtan.nl/images/photo/75465605092.pdfIn PDF document text
  • http://womenscouncildallasarboretum.org/clients/85748/File/66504877275.pdfIn PDF document text
  • http://18554080.com/userfiles/file/musoza.pdfIn PDF document text
  • http://ck-kutnahora.cz/gais/image/file/kisasad.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/379d46a94a12ef98c3d06065ca55dcfb/88329681031.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/80067254076.pdfIn PDF document text
  • http://www.dreamstoreonline.es/ckfinder/userfiles/files/buzujiwazefidixamajibiga.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/lukubezi.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9d25baf19---gegibelurusegodumej.pdfIn PDF document text
  • https://mavibusiness.it/file/42847882218.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/48ce6e9e1774087ec160c20650d5d867/71398758760.pdfIn PDF document text
  • http://tikatalog.sk/_files/file/41117040447.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce5e3ad142---piduzunulosuxegodefug.pdfIn PDF document text
  • http://wo-kop.pl/userfiles/file/65348451370.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe3ba26a3c---88452736211.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082df34d1928---mojaluteparuwaveziwaduro.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=cuanto+tarda+en+degradarse+una+bolsa+de+polietilenoPDF 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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