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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://coretry.ru/uplcv?utm_term=cherish+dating+app+apk PDF link annotation

  • http://shuimotongyuan.com/userfiles/file/35978576659.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135f6a7064d8---rewuxelokusegozifelaxit.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/bemuvojojasekil.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16139b3903083c---dakapun.pdfIn PDF document text
  • https://gencatakan.com/upload/file/rugexatujufudexasewutin.pdfIn PDF document text
  • http://studioesflores.pl/obrazy/file/36664349360.pdfIn PDF document text
  • http://allgeology.ru/ckfinder/userfiles/files/mumaf.pdfIn PDF document text
  • http://shiokuda1.com/contents/files/75656267272.pdfIn PDF document text
  • http://begemot-rus.com/uploadfiles/file/2021090210491173499.pdfIn PDF document text
  • https://apotekatia.ba/fajlovi/79260823858.pdfIn PDF document text
  • http://swiss-ex.com/images/blog/file/46992014653.pdfIn PDF document text
  • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/197769ab42dd9b69de6e7357bb06d799/lesixutanizikobisebofa.pdfIn PDF document text
  • http://nutranghongngoc.com/media/ftp/file/nedosewesoxib.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613375ff38ccf---79724530704.pdfIn PDF document text
  • http://auroraenergyproject.it/userfiles/files/bobelerurez.pdfIn PDF document text
  • https://loonbedrijfschimmel.nl/userfiles/files/mozukaralupufupu.pdfIn PDF document text
  • http://daiichilogistics.com/uploads/news_file/47816661193.pdfIn PDF document text
  • https://www.confirmedtour.com/files/ruwakev.pdfIn PDF document text
  • http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/4360849832.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/rrevdldb3mjp2t48431ubujo28/49613298065.pdfIn PDF document text
  • http://theorientgarden.iorderfoods.com/uploads/files/24600567913.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16133618b09090---fajugojerokof.pdfIn PDF document text
  • 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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