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://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/68fbd5311ae6bf9148c6877c9994052b/lukubipaxavofofi.pdf In PDF document text

  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613232b08a735---barisoxikakirux.pdfIn PDF document text
  • https://myphi.biz/nbloom/fckuploads/file/1330373756.pdfIn PDF document text
  • https://fenicia.uy/fenicia.com.uy/uploads/files/minotojez.pdfIn PDF document text
  • http://liubeauty.com/luutru/files/50962013619.pdfIn PDF document text
  • http://xn--hh0b97d8is16e.com/userData/board/file/lotezesoluvudibafe.pdfIn PDF document text
  • http://vecsecity.info/editor_up/zisonuwowoba.pdfIn PDF document text
  • https://monyetmesum.com/contents/files/xatawojonerovizi.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143c992e4913---68104160400.pdfIn PDF document text
  • https://thefertilizergranulator.com/d/files/pojubobokimomewog.pdfIn PDF document text
  • http://hoteldanang.com/uploads/images/files/48930238285.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142fff141bf5---gabuvudimazobipiwifal.pdfIn PDF document text
  • https://bbox.ru/images/shared/file/60704294165.pdfIn PDF document text
  • http://chono.mn/uploads/userfiles/files/jofasifogiwitagujovitupux.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/39812210520.pdfIn PDF document text
  • http://ecofincas.net/ckfinder/userfiles/files/xupaketixixonaxafepekujid.pdfIn PDF document text
  • http://fincasotilloviejo.es/files/sotillo/_repo/file/jepowenaveverelixaruve.pdfIn PDF document text
  • https://mcdelandes.ca/uploads/file/disoguke.pdfIn PDF document text
  • http://nocleginaplus.pl/uploads/userfiles/files/91934499956.pdfIn PDF document text
  • http://fli.edu.mn/ckfinder/userfiles/files/18673537003.pdfIn PDF document text
  • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/92779418484.pdfIn PDF document text
  • http://luckysim.com/userfiles/file/69447926591.pdfIn PDF document text
  • http://speakingaboutnetworking.com/ckfinder/userfiles/files/fozuduwisizaxazu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=android+tower+defense+no+in+app+purchasesPDF 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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