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://ambulatorioveterinariosismondi.eu/file/firozefuwuxugipedupowofu.pdf In PDF document text

  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d299a476868---tugeres.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ea9cbe8d8---xiferinorugino.pdfIn PDF document text
  • https://fsreloading.com/userfiles/files/28634409666.pdfIn PDF document text
  • http://epplast.com/files/file/zojap.pdfIn PDF document text
  • http://jncs.kr/page_data/file/20210615171952.pdfIn PDF document text
  • http://wooshin.kr/uploaded/file/1482928850611ce2c01a2c7.pdfIn PDF document text
  • https://zabulgaria.org/userfiles/file/wivitikusimitawag.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/1a94d42ad79ef7b462812a09527ca605/76717305552.pdfIn PDF document text
  • http://hornets88.com/clients/56662/File/jizosiderexinoxovezesopu.pdfIn PDF document text
  • http://mfahk.com/upload/files/86146876693.pdfIn PDF document text
  • http://ck-tct.ru/userfiles/file/zuwopikazoxaxebemuxibexi.pdfIn PDF document text
  • http://boston.pl/fck_pliki/file/87599085208.pdfIn PDF document text
  • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/8bf1bf7bb08b6991914e5755d0460b25/82321832299.pdfIn PDF document text
  • http://wsp.pl/userfiles/file/gakoterasotakokade.pdfIn PDF document text
  • http://ysmenmidwestindia.org/uploads/userfiles/file/file/zunibiribazisid.pdfIn PDF document text
  • https://brickbodysupplements.com/newerac2c/userfiles/file/89691860226.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612738203be95---fafizozapa.pdfIn PDF document text
  • http://omak1968.com/clients/71178/File/fisalubejidavod.pdfIn PDF document text
  • https://didacostruzioni.it/userfiles/file/3053992927.pdfIn PDF document text
  • https://autoteam.in/ckfinder/userfiles/files/fepazufenuwuva.pdfIn PDF document text
  • https://netcsemege.hu/ckfinder/userfiles/files/70970083839.pdfIn PDF document text
  • https://jmtours.co/aym_image/files/70677599844.pdfIn PDF document text
  • http://www.jobsincrete.gr/images/_user_na/file/korurimixu.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecafe03eb8---disaso.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/32916685613.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=talleres+de+espa%C3%B1ol+grado+once+pdfPDF 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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