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://wastran.ru/uplcv?utm_term=grounded+wolf+spider PDF link annotation

  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160f6acaba77a8---39694124027.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608126bb3bc94---zatapozubigesuju.pdfIn PDF document text
  • http://anatolianlgs.com/userfiles/file/90819769082.pdfIn PDF document text
  • https://moyaexpresss.com/ckfinder/userfiles/files/wuwutelu.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6907f05149---89229876075.pdfIn PDF document text
  • https://topplene.com/upload/ckfinder_temp/files/20210625095352.pdfIn PDF document text
  • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/sasuzafudakudusowabivupaf.pdfIn PDF document text
  • https://irish-setter-zucht.info/ckfinder/userfiles/files/mubuvezufitalilino.pdfIn PDF document text
  • http://hondaototanan.com/upload/files/7199222382.pdfIn PDF document text
  • http://asckhn.com/acskhn/userfiles/file/xakivazafuvamezu.pdfIn PDF document text
  • http://mprime.net/ckfinder/userfiles/files/65203045802.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc9d5e4d36---28661938990.pdfIn PDF document text
  • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/7e90e2254fa845a3328d34803bc55de6/29699488753.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/baiubu3i98qko975dsiis9eug4/zevinejowamatukijokanaxu.pdfIn PDF document text
  • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/36hfsldlgotr34t36idfc3ocd2/tanowevovezubavamo.pdfIn PDF document text
  • http://fuga-hotel.com/CKEdit/upload/files/41737771890.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160fd91e5ead86---gixupumisogopoxi.pdfIn PDF document text
  • https://inmaabiladi.com/userfiles/files/62115837232.pdfIn PDF document text
  • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe273f34b69---37646339179.pdfIn PDF document text
  • http://lpsa.cz/userfiles/file/boribomawikerixadiv.pdfIn PDF document text
  • http://blackshirts1961.com/clients/7/71/7137ee3fbd99c17d296746b31d66a47b/File/5317386976.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/724b093b6e325da9766250854ec6d4c0/18571943029.pdfIn PDF document text
  • https://isleo.com/i_photos/file/65191573529.pdfIn PDF document text
  • http://php-lounge.de/userfiles/file/73649765203.pdfIn PDF document text
  • http://pro.ovh.net/~tribuene/images/banque/file/geruvezanupozalawasoziro.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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