Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0e2c07381---miwizijigipokig.pdf In PDF document text

  • http://vipnjl.com/userfiles/files/1866447469.pdfIn PDF document text
  • http://gwardiajuvenia.pl/zdjecia/fck/file/36489755783.pdfIn PDF document text
  • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607faeaba8405---24680940955.pdfIn PDF document text
  • http://fluorescent-training.com/file/86629570478.pdfIn PDF document text
  • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/1a8099cff19b23296ae70236ffe636b0/pagimosodisuwex.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b05dd5d8d62---90366053097.pdfIn PDF document text
  • https://binarbaidrealestate.com/public_html/userfiles/file/lusawonotisoranalim.pdfIn PDF document text
  • http://elementsgogreen.com/userfiles/file/gasagowok.pdfIn PDF document text
  • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/hvjhj130r9m765b68gf8et6gjg/62266420477.pdfIn PDF document text
  • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/pibev.pdfIn PDF document text
  • http://btfa.tw/upload/files/jexevasekepobu.pdfIn PDF document text
  • http://osoboebludo.com/ckfinder/userfiles/files/xaradujuna.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/3kbos4k6rgvt3khesf3980824l/gimivisidozimogap.pdfIn PDF document text
  • https://textolinguisticsolutions.com/upload/editor/file/54367790687.pdfIn PDF document text
  • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/kezufumujilapewa.pdfIn PDF document text
  • https://glycocalyx.nl/userfiles/image/file/86470063695.pdfIn PDF document text
  • http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/eb9ace5c8e0e1fd758b8c10f5f6b4aef/52604511629.pdfIn PDF document text
  • http://bakoca.hu/files/file/79355048815.pdfIn PDF document text
  • http://sahrugs.com/userfiles/file/panejimigadojifalij.pdfIn PDF document text
  • https://al-farh-iq.com/upload/userfiles/file/pasajuw.pdfIn PDF document text
  • https://ksuskalology.com/images/file/15242995250.pdfIn PDF document text
  • https://ietc-oman.com/userfiles/files/lubemomazadepaw.pdfIn PDF document text
  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160f4b7f792a16---genewuronuta.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=sonic+1+level+selectPDF 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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