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://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/u4d0rdq5ipp5obk7352c680pf6/44810661591.pdf In PDF document text

  • http://afgventuregroup.com/cfiles/file/sunosilakov.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/dumetunudunikuwunuzenoko.pdfIn PDF document text
  • http://holidayservicemarsala.it/userfiles/files/fusoriserewub.pdfIn PDF document text
  • http://sapaethnic.com/webroot/img/files/zipututulenado.pdfIn PDF document text
  • http://esthebel.de/userfiles/file/17872817551.pdfIn PDF document text
  • https://petikdaun.com/contents/files/64675220502.pdfIn PDF document text
  • https://lmetinternationalschool.in/ckeditor/ckfinder/userfiles/files/76763803341.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089948f9a486---71415804783.pdfIn PDF document text
  • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/55a6a2991de2ea5f6d48fea95764a8fc/10068875957.pdfIn PDF document text
  • http://ddaengshop.com/ckupload/files/ridiwudijatopegoxujamiko.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160cd95f9c84b1---24962799405.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c756e0e11b5---somafodixerizokanezanagav.pdfIn PDF document text
  • http://autoscuolecasetta.it/userfiles/files/xilurojegumupoberikudokiv.pdfIn PDF document text
  • http://archissimo.eu/userfiles/files/zipaxavijajijusirirus.pdfIn PDF document text
  • http://ventilatoryzlin.cz/images/file/votexozofazunuvip.pdfIn PDF document text
  • http://islandpointfl.com/userimages/10212604889.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/53ddb5494f6bbc6d41e7f21756a36110/tezusedaxan.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a86c979fe38---teregex.pdfIn PDF document text
  • http://staractivecollection.com/resimler/site/files/gabegi.pdfIn PDF document text
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/8311b754fb7d62326afbd29171e3af8f/wenopazejaf.pdfIn PDF document text
  • http://biogenetec.tw/image/files/20210817_015203.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160795d4bda3cd---55280370457.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=factors+affecting+choice+of+distribution+channel+pdfPDF link annotation
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/pivedakofudabunaxeremupe.pdfIn PDF document text
  • 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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