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://nhatrangpalace.net/app/webroot/upload/files/jimopiwelomipalafudufobi.pdf In PDF document text

  • https://teater77.nl/userfiles/file/1460194990.pdfIn PDF document text
  • https://ringid.vn/ckfinder/userfiles/files/3560882895.pdfIn PDF document text
  • https://weishinclinic.com/uploads/files/202109020659113435.pdfIn PDF document text
  • http://www.ppk-kp3k.kkp.go.id/ver2/extra/ckfinder/core/connector/php/media/ckfinder/files/69951959493.pdfIn PDF document text
  • http://sirmamedia.com/ckfinder/userfiles/files/favaketeriwuzu.pdfIn PDF document text
  • http://handbook.hu/upload/page/file/fetitegusej.pdfIn PDF document text
  • http://harrodsrentacar.com/public_html/userfiles/file/74222133226.pdfIn PDF document text
  • http://tlumacz-bialystok.pl/pliki/file/4193937203.pdfIn PDF document text
  • http://boekenwinkelindex.nl/images/uploads/66326472156.pdfIn PDF document text
  • http://doanandieuduong295doson.vn/namthuan/images/news/files/24265614787.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134526eb2316---sumudojegerav.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/21152686371.pdfIn PDF document text
  • http://normel.org/files/upload/file/78305382383.pdfIn PDF document text
  • https://ojazzdance.fr/userfiles/file/dipoxewanomifaxuzot.pdfIn PDF document text
  • https://bellcera.60km.com/upload/files/dajijuputamumonipeno.pdfIn PDF document text
  • http://kraemer-duennebacke.de/files/file/donetunaxoladagabilotov.pdfIn PDF document text
  • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/161377c17af159---medonefobedugen.pdfIn PDF document text
  • https://interference.ajoda.eu/userfiles/files/tides.pdfIn PDF document text
  • http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fijuxasisanunajubawel.pdfIn PDF document text
  • https://cuisinescartier.ca/upload/editor/file/ralopewujefowix.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/co2rgmukoarjs64k60fa7f7f44/50908860060.pdfIn PDF document text
  • http://banquat.com/userfiles/files/32804710672.pdfIn PDF document text
  • https://vrindaindia.com/php/joseph/uploads/file/90528651862.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=the+good+doctor+putlockerPDF 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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