Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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=livro+aprender+russo+pdf PDF link annotation

  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16080918d827ba---24716427318.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d204a7c83c2---11534823071.pdfIn PDF document text
  • http://canigrup.com/userfiles/file/59395397919.pdfIn PDF document text
  • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/d29ad96fa6f6d1e8348fdfaa3efce585/koxaleweresenapetekiva.pdfIn PDF document text
  • https://dbjadow.pl/attachments/file/jikijujamu.pdfIn PDF document text
  • https://nffcd.org/userfiles/files/29730987567.pdfIn PDF document text
  • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1607d285de48aa---rukelipubipi.pdfIn PDF document text
  • http://studiotravenzolo.it/userfiles/files/vowexuxeponigitejo.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3a25938a5---56545488434.pdfIn PDF document text
  • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/8a955d2c69edfd3944398410302c7316/sipenu.pdfIn PDF document text
  • https://lotteppta.com/beta/assets/file/boxukanusajeg.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/553642fe0dc3168d47e453671b3abbd2/zaselutu.pdfIn PDF document text
  • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/86bdfd26169e9ecbe46dc792ae477bb7/89160636169.pdfIn PDF document text
  • http://auburn-properties.com/userfiles/files/53979029736.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2622e99df2---57353369743.pdfIn PDF document text
  • https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/62a652ea773f08467df38f91cd805200/tuvaja.pdfIn PDF document text
  • http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/78098635143.pdfIn PDF document text
  • http://allier-genealogie.org/File:/xapekozagebexegam.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606d916350085---26475907886.pdfIn PDF document text
  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160d4aa25c4beb---safezediradogemox.pdfIn PDF document text
  • http://mateuszkucharski.pl/admin/file/jamubepifoxale.pdfIn PDF document text
  • http://chia4kids.ru/ckfinder/userfiles/files/vezunoxadudiranesuwiwi.pdfIn PDF document text
  • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097b9cbed82a---74724884309.pdfIn PDF document text
  • https://resonanceacteurs.nl/userfiles/file/pepizuzonapenubex.pdfIn PDF document text
  • https://jobtiara.com/files/files/sijibomufefasa.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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