Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://infrive.ru/uplcv?utm_term=mean+questions+with+solutions PDF link annotation

  • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/276ab7daeb427e5d8a7b74ed7f8a75b9/gibapo.pdfIn PDF document text
  • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16077564db69e1---damuvevivepasabe.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cadb207c33---59712385877.pdfIn PDF document text
  • http://clair-environnement.eu/catalogue_dynamique/file/50233129769.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/jvlclaoio3iet47b0msalk77q1/59428957479.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5530ae1ef---52660195754.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a75ac751906ec02dbb13d07cc118ab59/58401001722.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/2021528442538244.pdfIn PDF document text
  • http://gemwishrs.com/ckfinder/stones/files/3202582979.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/xisif.pdfIn PDF document text
  • https://sunnyvale.com/wysiwygfiles/file/kaxapidarisap.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f61eb2426---14486261726.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a45f0fe3cf5---33239676148.pdfIn PDF document text
  • http://abwingssuffolk1.com/uploads/files/551219074.pdfIn PDF document text
  • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/g9gj6dg8l8pvadn5qdqiinfn6h/58927421449.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609906368584c---3973862370.pdfIn PDF document text
  • https://mimpishio1bet.com/contents//files/44749923791.pdfIn PDF document text
  • http://hotelbelleepoque.bg/userfiles/file/buvusipizosa.pdfIn PDF document text
  • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/nh7jd35040eijg98v778omrui4/tonoturatibiduve.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9ca08af16---86196524052.pdfIn PDF document text
  • https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/48b16fa59311db6ea15a4a71e18c7739/43838993643.pdfIn PDF document text
  • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210605090134244885zp35u3.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbfc0c20cf---gavazeluwogufivosavomi.pdfIn PDF document text
  • https://reparationmobile.net/userfiles/file/17448227344.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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