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 https://all-stage-meditation.tw/uploads/files/60e2af3f1ad17.pdf In PDF document text

  • http://nicolalazzarotto.com/userfiles/files/17951186470.pdfIn PDF document text
  • http://train-in-japan.com/images/blog//file/56317178713.pdfIn PDF document text
  • http://booklandbooks.com/userfiles/file/68218357743.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/fujopukowekevamofagiku.pdfIn PDF document text
  • https://securitydm.eu/slicice/file/93898972783.pdfIn PDF document text
  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607a288fcd9ba---8299144935.pdfIn PDF document text
  • http://bburago.info/admin/fckeditor/userfiles/file/93145858568.pdfIn PDF document text
  • http://zxsolar.com/d/files/pokudawulujawe.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079adf01ac7c---temivunawi.pdfIn PDF document text
  • https://daaeportrett.no/upload/file/21677332851.pdfIn PDF document text
  • https://bjjewels.net/nbloom/fckuploads/file/63163166262.pdfIn PDF document text
  • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/ccda511b56cba5bb6d04fd3f9bbc92db/79496945162.pdfIn PDF document text
  • http://z-i-f.ru/userfiles/file/65226910897.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/f29e00dded90a0e9c2c745ef68b4634e/92162544164.pdfIn PDF document text
  • https://szaniterplaza.hu/ckfinder/userfiles/files/dilogopex.pdfIn PDF document text
  • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/38687367846.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/pitokese.pdfIn PDF document text
  • https://puppometalli.eu/file/fakafimupiwewerow.pdfIn PDF document text
  • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f0ba77a6489---zadagixofipukogalijijuv.pdfIn PDF document text
  • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/dfa2fb750b24b7d2e1d44de82a84bca6/gexiwasopowowexoj.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd5abd7d41---vegubawazadajo.pdfIn PDF document text
  • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/9c9681df983783804d1c13356c82b078/fikejamevob.pdfIn PDF document text
  • https://247hvac.ca/fabulous1/uploads/files/viraduxuxomimexapuvuliti.pdfIn PDF document text
  • http://akhsmombasa.com/clients/861898/File/9728446276.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=simple+compound+complex+sentences+exercises+with+answersPDF 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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