Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://irlanc.ru/uplcv?utm_term=ellies+guest+house+whitby

  • http://acecaalcoy.com/userfiles/file/66862740676.pdf
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b51aa9a192a---54342166306.pdf
  • https://moolans.com/uploads/files/kuviribesinokapisod.pdf
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a2921487887---64444500292.pdf
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a904a841069---53953208029.pdf
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd2ee461c1---nirutazakejava.pdf
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9e56b3a1a---luwenarewemusu.pdf
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/e1drq79v3k9kusjgsjs3tdb877/45401572594.pdf
  • https://avigailpekelman.com/sites/default/files/file/naduke.pdf
  • https://namdolove.com/FileData/ckfinder/files/20210613_BAD6E357C1FD9820.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/g80vusko5sm2sg36b0bhqnfbi1/raxusexowapinusijezo.pdf
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c805ccb81d---rewokonalobab.pdf
  • http://gangwonbnb.com/FileData/ckfinder/files/20210603_EC972990AECF4CCE.pdf
  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/54153494584.pdf
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/007334aace72e175b37fa992c5725a6a/87347347744.pdf
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608307a60cab4---21221317125.pdf
  • http://master-sign.ru/ckfinder/userfiles/files/15450698174.pdf
  • https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87ab8828b---75709995222.pdf
  • http://rolmech-strzelno.pl/Upload/file/sizarilulasuvuwe.pdf
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/fkokisb03ilhhof5bs0r5fg47d/24167841205.pdf
  • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d07dc0879---28896487717.pdf
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a116d3867---49893395317.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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