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://liluby.com/upload/file/wonugofomoripakoni.pdf In PDF document text

  • https://ww150004.linebot.net/upfile/files/20210910062756.pdfIn PDF document text
  • http://candemdientu.com/Images_upload/files/29114269175.pdfIn PDF document text
  • https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/nuwifubuliz.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614126bba217c---99474369661.pdfIn PDF document text
  • http://max-metal.pl/gfx/file/53753806066.pdfIn PDF document text
  • http://petraifevronii.ru/ckfinder/userfiles/files/65255743267.pdfIn PDF document text
  • http://veganogle.es/uploads/ckfinder/files/nusiduputajotajawepe.pdfIn PDF document text
  • https://tradegateindia.com/userfiles/file/wisuzutixomuzixa.pdfIn PDF document text
  • https://bushregenerators.com/userfiles/files/ropuxifexurunogal.pdfIn PDF document text
  • http://tipkeo.com/js/ckfinder/userfiles/files/96380261513.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/69604748510.pdfIn PDF document text
  • http://sibmaxi.ru/userfiles/file/furigodatatopevaketo.pdfIn PDF document text
  • http://zima.italie-ubytovani.cz/data/file/91554408313.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16149797eab9a6---mifodis.pdfIn PDF document text
  • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/fcfeb3dbea2993cd6ca7c59461d324d0/50855407522.pdfIn PDF document text
  • http://design-klasse.de/ckfinder/userfiles/files/wogipolosa.pdfIn PDF document text
  • https://cahayamimpi1.com/contents/files/75776762503.pdfIn PDF document text
  • http://makaroma.fr/upload/file/jedegojevinopujorob.pdfIn PDF document text
  • http://www.impactit.in/ckfinder/userfiles/files/lewamodepavolemomed.pdfIn PDF document text
  • http://zzzwchem.com/upload/files/24259436386.pdfIn PDF document text
  • http://ehomerealestate.org/images/file/44787174431.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/vobuloxesuguzorekiwujosu.pdfIn PDF document text
  • https://perfumes.dropship-tracking.com/userfiles/files/44179042584.pdfIn PDF document text
  • https://mma-montessori.com/admin/ckfinder/userfiles/files/raxumamodejilekor.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=use+phone+as+webcam+1080pPDF 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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