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.
• 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://synerhu.ru/uplcv?utm_term=fikri+apk+movie+download PDF link annotation

  • https://yocarbroker.com/upload/ckfinder/files/9306365342.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/betalugo.pdfIn PDF document text
  • http://krajinar.cz/soubory/files/79899549978.pdfIn PDF document text
  • http://kool-house.com/upload/editor/file/3442099509.pdfIn PDF document text
  • http://jyjjapan.jp/files/ckeditor/files/74990760219.pdfIn PDF document text
  • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/28995f3d48d6bcb6ae6d1eaea8585d7d/54893156415.pdfIn PDF document text
  • http://quimis.org/js/ckfinder/userfiles/files/3847678443.pdfIn PDF document text
  • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff52c56184---19720889174.pdfIn PDF document text
  • http://robedecreateur.com/img/files/64208006802.pdfIn PDF document text
  • http://lnyuanzong.com/uploads/files/20210905183301.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/c9c55a963f9be41bdce923b2a5831d91/65173489687.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161316c8210ad3---8569980227.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147d1417162e---mulajukemapujuzosup.pdfIn PDF document text
  • http://mazurubezpieczenia.pl/zdjecia/fck/file/40180461830.pdfIn PDF document text
  • http://tunapvietnam.thietbiotoviet.com/Images_upload/files/zisajuroxapegopibela.pdfIn PDF document text
  • http://owv-sad.de/userfiles/files/52560654786.pdfIn PDF document text
  • http://perilatomsk.ru/ckfinder/userfiles/files/sawisirujiziwid.pdfIn PDF document text
  • https://coherence.cz/userfiles/file/visisudagasafi.pdfIn PDF document text
  • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/e6a5063f64f38efbba4a2859aa3cf394/garizewo.pdfIn PDF document text
  • https://zlato-eu.cz/upload/files/zozurivoxe.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/92918192224.pdfIn PDF document text
  • http://gocep.org/data/userfiles/files/lonekimiwunabiderabara.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407aeff3714---gejizat.pdfIn PDF document text
  • http://maschimaurizio.it/userfiles/files/24211417351.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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