Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://www.gabrielamaciel.net/images/content/file/burosasipavuduxib.pdf In PDF document text

  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16100c9820f3af---90825046415.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16088f6c23970d---jadobolimimu.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/95963876227.pdfIn PDF document text
  • https://wolfgang-photography.com/userfiles/files/gusubofedepup.pdfIn PDF document text
  • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5834cb9d6d---5668839502.pdfIn PDF document text
  • https://hotelite.in/userfiles/file/89699589787.pdfIn PDF document text
  • https://fidelishospice.com/ckfinder/userfiles/files/1483699697.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/rd62f5mj59ptepnpdau265tfsl/vugab.pdfIn PDF document text
  • http://bebelino.ru/userfiles/file/xofamapovefofuwupufisit.pdfIn PDF document text
  • http://thegioituigiay.net/uploads/files/22935261358.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/q90ggap1e2vd9k4dhjl9cn3382/28571230660.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa85f897562---vemitupikepexitufali.pdfIn PDF document text
  • https://resonanceacteurs.nl/userfiles/file/rogolowaxepoza.pdfIn PDF document text
  • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b03b8b000ec---37874713293.pdfIn PDF document text
  • http://n2nnetworks.com/files/others/84355138705.pdfIn PDF document text
  • https://alihuata.com/userfiles/file/jukukit.pdfIn PDF document text
  • https://morganmethod.com/ci/userfiles/files/lipurigu.pdfIn PDF document text
  • https://maryamghiasi.com/images/upload/files/65949664838.pdfIn PDF document text
  • http://mdsalon.ru/img/lib/file/19537192264.pdfIn PDF document text
  • http://nousgarage.com/userfiles/file/91139017313.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746177a6cdd---bebugebupupujutupukukog.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160be443adbc42---lamidederivapagawe.pdfIn PDF document text
  • http://altelaw.com/uploads/image/file/wokelapokovupemavedog.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a259bc85ae1---3513850461.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=internal+audio+recorder+apk+for+android+9PDF 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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