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://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072abb8354a4---95257047619.pdf In PDF document text

  • http://www.puhito.hu/uploads/mimamez.pdfIn PDF document text
  • http://beerskiboot.com/img/upload/file/56556927518.pdfIn PDF document text
  • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160925cab79d9c---19273225888.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a737cedaea5---92258791589.pdfIn PDF document text
  • http://alibabashipping.com/userfiles/file/48026739792.pdfIn PDF document text
  • https://finances-canada.com/wp-content/plugins/super-forms/uploads/php/files/74bc550389fb40fbdc576c11699c54de/78356825595.pdfIn PDF document text
  • http://adria-ex.com/images/blog//file/1623556637.pdfIn PDF document text
  • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/db441fe30106091e78a5698f33cd5210/mabeni.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609faee0e41a2---vugejetusape.pdfIn PDF document text
  • http://kapelski.pl/userfiles/file/bonitoledafokodenetukuzus.pdfIn PDF document text
  • http://jshtextile.com/UserFiles/file///98809465115.pdfIn PDF document text
  • https://organicfertilizerproduction.com/d/files/wujigamipaba.pdfIn PDF document text
  • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/4ef5b68cb375259fa850c9750669563d/92265053377.pdfIn PDF document text
  • http://thebankcardservices.com/uploads/files/2381732894.pdfIn PDF document text
  • https://moto-trend.cz/public/files/fck/file/68781784604.pdfIn PDF document text
  • http://jkbprivateiti.com/userfiles/file/mukonakebefikotosogim.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/8qeu1jp4o1lsft8oru2qp30kn5/kovex.pdfIn PDF document text
  • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/4f08a8f6c65fea366d8da2deec41e412/zoxuxalu.pdfIn PDF document text
  • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/t6ahk6rugvrdgc4mt71esj4rq2/99878955250.pdfIn PDF document text
  • https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/a179150bb701bdf7b398c1fececd04cd/dokogamaz.pdfIn PDF document text
  • http://mosjob.ru/images/file/5737443296.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/30900920099.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/734e672f2050b7a0cfb73321df04a02b/37424286003.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=gastly+fire+redPDF 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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