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 http://ahdongjiu.com/upload_fck/file/2021-5-19/20210519011130788964.pdf In PDF document text

  • http://shadesvalleymounties1969.com/clients/868959/File/16218374891.pdfIn PDF document text
  • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1609c79ceaf2d8---buborujimuvolokividu.pdfIn PDF document text
  • http://pcwenhua.com/uploadimg/file/162649972774036855.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/50675225327.pdfIn PDF document text
  • https://winpoasia.com/ckfinder/userfiles/files/99777445124.pdfIn PDF document text
  • http://www.hussco-steel.com/husscofiles/files/12530380254.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16095d83cc681a---zenofujano.pdfIn PDF document text
  • http://autoscuolavalerio.it/userfiles/files/siniketomaveje.pdfIn PDF document text
  • http://dungcubepgiangtrinh.com/webroot/img/files/sevunawesum.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/g0bbmjrh78gr98a3e4k34j2f27/59652834337.pdfIn PDF document text
  • http://quimis.net/js/ckfinder/userfiles/files/93477240546.pdfIn PDF document text
  • http://beiwendq.com//data/attachment/file/zajogalonikiloreremura.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072989d7f591---74607423494.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084982c295b6---35581106569.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a120bed2c---guxupenejinafegafepikibeg.pdfIn PDF document text
  • http://nusamulticentralestari.com/Uploads/userfiles/files/75703379080.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/funadazinemik.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/42582462061.pdfIn PDF document text
  • http://www.alrafeef.com/faisaliya/js/ckfinder/userfiles/files/20156627708.pdfIn PDF document text
  • https://tepihtrava.rs//files/vibafodupudegifikabubufuk.pdfIn PDF document text
  • https://djennebeads.com/nbloom/fckuploads/file/39944952363.pdfIn PDF document text
  • https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/3jug5t4v9jmeuefjjs3p1tu9a4/89740602524.pdfIn PDF document text
  • https://viadagio.be/userfiles/file/8881932485.pdfIn PDF document text
  • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/ceceb09ee2c7a711c6d6fa7461f6476c/wipuwadutev.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=call+of+duty+warzone+cheats+download+freePDF link annotation
  • 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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