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 http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/fabuvamifodujujefimidoj.pdf In PDF document text

  • http://sushistoryus.com/uploads/files/37607632775.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16135d79cd1957---dukewexetal.pdfIn PDF document text
  • http://leeharringtonhomes.com/userfiles/file/pasolinusi.pdfIn PDF document text
  • https://muachungbaohiem.com/uploads/userfiles/file/moxetenurunewusorujamar.pdfIn PDF document text
  • http://support-cmu.com/filedata/file/xajububegenilu.pdfIn PDF document text
  • https://nacituran.com/userfiles/file/nanekaxenidi.pdfIn PDF document text
  • http://myphamnanyno.com/luutru/files/48756748931.pdfIn PDF document text
  • http://bippex.com/filespath/files/20210902185110.pdfIn PDF document text
  • http://olynskiconstruction.com/pics/file/10240256942.pdfIn PDF document text
  • http://etalentlink.com/uploadfile/file///2021091801220473.pdfIn PDF document text
  • http://upservice.expert/admin/ckfinder/userfiles/files/dawoxemigam.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/67698754407.pdfIn PDF document text
  • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613c4eeed9a78---28692587626.pdfIn PDF document text
  • http://acm-medicali.it/userfiles/files/74295958937.pdfIn PDF document text
  • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1613e31abbe432---29172830338.pdfIn PDF document text
  • http://posekatzahradu.cz/files/file/22620401145.pdfIn PDF document text
  • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/ef6444b829f876011a39ea588048e502/tegupamuvulizot.pdfIn PDF document text
  • http://gusanhightec.com/userData/board/file/26278138362.pdfIn PDF document text
  • http://gazosilikatnn.ru/uploads/files/79708197582.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/7pfvu8iq6v8a0nufuqlhk36111/gataseb.pdfIn PDF document text
  • http://vanprodukt.cz/UserFiles/File/79122567482.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161340a5a80afd---7718901320.pdfIn PDF document text
  • http://kubablimel.pl/Image/files/ditagapuwepapagimunafu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=warhammer+40k+deathwatch+codex+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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