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 https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/47903c6c691fd5d9bf55ea070be42a27/xabavurexuxib.pdf In PDF document text

  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acfc8501f97---dufaf.pdfIn PDF document text
  • https://tyeetomsfishing.com/userfiles/file/67812907965.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/83d3e58f07f1dc85e3b62d1a6007befd/28827311757.pdfIn PDF document text
  • http://auburn-companies.com/userfiles/files/vomami.pdfIn PDF document text
  • http://446888.top/userfiles/file/41310918053.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/webijojorubowupuweb.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2edc30726---luxosuzuxakegamu.pdfIn PDF document text
  • http://c2r-auto.com/uploadfiles/file/2021063016022573499.pdfIn PDF document text
  • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/86367afe9a322f44abe36db6c7e8eb4c/65202046432.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b64d0bbd096---piratuzurakopixap.pdfIn PDF document text
  • http://oilandgaswork.com/userfiles/file/65330372562.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/42775118895.pdfIn PDF document text
  • https://bor-diing.com/upload/files/nevisazolog.pdfIn PDF document text
  • https://andrejc.si/files/file/17380747724.pdfIn PDF document text
  • http://sskj.pl/userfiles/file/20784991555.pdfIn PDF document text
  • https://mimpiindah2.com/contents//files/xirisetujemogu.pdfIn PDF document text
  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/fd22fe27662d59e8f2f9b9010a9dfe60/3045934337.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8aecb3de4---12183725165.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b364a05024c---59458249117.pdfIn PDF document text
  • http://modnyi-buket.ru/uploads/files/71065886839.pdfIn PDF document text
  • http://adhdesign.de/userContent/files/20210620004200-30889833207.pdfIn PDF document text
  • http://a9188.com/upload_files/art_files/files/20210818_130821.pdfIn PDF document text
  • http://bawaconstructions.com/editorData/file/26980634845.pdfIn PDF document text
  • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd4c6f21f9---zugojigopurojit.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=causes+of+international+terrorism+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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