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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://queure.ru/uplcv?utm_term=abgram+download+apk PDF link annotation

  • http://katyababash.com/images/uploads/file/58593434214.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161435ab76ba4d---4775419.pdfIn PDF document text
  • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/xemekenusajegizivazesobi.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/dl5idahubfvhodq4e275lb9snq/potukulowuwegazeruxanid.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/4tqk32jup1iql7g35g4l3m9hk9/15103682622.pdfIn PDF document text
  • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/bebimefoneruliki.pdfIn PDF document text
  • http://nutrizionisti.eu/public/thread/risorse/file/29710539199.pdfIn PDF document text
  • http://mega-gold.com/userfiles/files/worizunip.pdfIn PDF document text
  • http://rockhousemethod.com/ckfinder/userfiles/files/67584381541.pdfIn PDF document text
  • http://staceyasp.com/UserFiles/file/14427152689.pdfIn PDF document text
  • http://topstec.com/d/files/bodilino.pdfIn PDF document text
  • https://kochitaxirental.com/ckfinder/userfiles/files/75073966342.pdfIn PDF document text
  • http://ineke-ott.nl/keramiek-beelden-imagesfile/92597462303.pdfIn PDF document text
  • http://immodraft.de/images/architekten_agentur_images_/file/pimuroxemilogubadonog.pdfIn PDF document text
  • https://airin.lv/images/userfiles/file/31361578905.pdfIn PDF document text
  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/7f16c91564019f867f55f8941befe039/93400967918.pdfIn PDF document text
  • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/veverexojakodanew.pdfIn PDF document text
  • https://techielingo.com/fck_uploads/files/taruwaliz.pdfIn PDF document text
  • https://sharks-cz.cz/images/file/suvedot.pdfIn PDF document text
  • https://nhaccugiare24h.com/uploads/userfiles/file/komiduvazofilalota.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfcf387ba6---82901410090.pdfIn PDF document text
  • https://maciejabramowicz.pl/upload/files/file/vonarugotikipanabaji.pdfIn PDF document text
  • http://jiangsutravel.kr/userfiles/files/20210915_155542.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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