Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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=how+to+make+a+second+clash+of+clans+account+on+iphone PDF link annotation

  • http://giovanninociti.com/userfiles/files/muzite.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nl3ncjsj5p5kqm7dsrnbqp1ki3/92423804194.pdfIn PDF document text
  • https://raovat72.vn/uploads/news_file/20429678284.pdfIn PDF document text
  • http://22vek-omsk.ru/fck_editor_files/files/zizesofazazojomiwipat.pdfIn PDF document text
  • http://princeverma.in/uploads/files/zexibiwodowukewapiw.pdfIn PDF document text
  • http://baltic-rt.ru/ckfinder/userfiles/files/gavotafazonojemelo.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/84578163745.pdfIn PDF document text
  • http://stlnsk.ru/uploads/file/5818234852.pdfIn PDF document text
  • http://phrabat.net/UserFiles/File/fofapemuwurapebapekem.pdfIn PDF document text
  • http://usairsprings.com/userfiles/file/mojozezuz.pdfIn PDF document text
  • http://mtcnx.com/upload/fckimagesfile/1638207166.pdfIn PDF document text
  • http://9262895.ru/ckfinder/userfiles/files/wilexejujaxivosuponofup.pdfIn PDF document text
  • https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/noxes.pdfIn PDF document text
  • https://isabellepieman.com/userfiles/file/41133330982.pdfIn PDF document text
  • https://allora-tour.by/var/upload/file/32613297320.pdfIn PDF document text
  • http://yhbinternational.com/userfiles/file/50128192667.pdfIn PDF document text
  • http://myesen.life/userfiles/file/91578455333.pdfIn PDF document text
  • http://kipia-nn.ru/userfiles/file/41043667370.pdfIn PDF document text
  • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/03ed098d2e3187a87824dea99a7a5fbd/mimivikuroradatedos.pdfIn PDF document text
  • http://alompar.hu/uploads/content_files/files/gejadoxumobatabuz.pdfIn PDF document text
  • https://akilanews.com/ckfinder/userfiles/files/pomedafixujufawotijen.pdfIn PDF document text
  • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161380cc0ade97---rariwixez.pdfIn PDF document text
  • http://rdasesores.gestconcursal.com/editor/ckfinder/userfiles/files/futelonuzitogovikuwojixev.pdfIn PDF document text
  • http://area100impianti.it/userfiles/files/4085058578.pdfIn PDF document text
  • http://citty.org/images/uploads/file/69725079195.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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