Malicious PDF — malware analysis report

Static analysis result for SHA-256 9add422f4ec10108…

MALICIOUS

PDF

201.3 KB Created: 2022-03-19 18:52:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: f05e7c3220bf04e3dc8d6b9c3341789d SHA-1: ef1e43a2ca07bfa2cdd7afb7b4b737be835a2ea0 SHA-256: 9add422f4ec10108c9e28d18d8ef998b6ecf9d96dce36c96d8a6980e5805e10b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8150

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/47923907068.pdf In PDF document text
    • https://www.osazovanidps.eu/admin/kcfinder/upload/files/nubofitunepus.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/pirilufoxajewobuzer.pdfIn PDF document text
    • http://dynamicyunnan.com/ckfinder/userfiles/files/jididuvuriwiro.pdfIn PDF document text
    • http://www.w.radeton.cz/ckfinder/userfiles/files/61079354643.pdfIn PDF document text
    • http://serbanindustrialconstruct.ro/uploads/files/82831661840.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/162191c13857f7---50610156991.pdfIn PDF document text
    • http://24horasnoar.com.br/ckfinder/userfiles/files/mosipa.pdfIn PDF document text
    • https://soechi.net/userfiles/file/62124011735.pdfIn PDF document text
    • http://www.americandartsmadrid.com/kcfinder/upload/files/bubelexipagonudikegogud.pdfIn PDF document text
    • http://newms.imprendia.it/userfiles/file/rojagarazat.pdfIn PDF document text
    • https://mellorymotors.ru/admin/ckfinder/userfiles/files/vijexapoborepup.pdfIn PDF document text
    • https://angkagenap.com/contents/files/83677456557.pdfIn PDF document text
    • http://baloneacessorios.com/_upload/file///15927265096.pdfIn PDF document text
    • http://alt-1c.ru/userfiles/file/kuzewesipapazan.pdfIn PDF document text
    • http://phutungquanghieu.com/app/webroot/files/ckfinder/files/rifezisanuramija.pdfIn PDF document text
    • http://yachtandtrade.com/files/pasazij.pdfIn PDF document text
    • http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/kerotevunanef.pdfIn PDF document text
    • http://www.cpiequipos.com/assets/images/user_files/files/78489829998.pdfIn PDF document text
    • http://autoservizimensi.it/images/fck/file/sesepemir.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/62010273095.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/xusixovavigugoder.pdfIn PDF document text
    • https://easresidence.ro/app/webroot/files/userfiles/files/gomudexetobenisulolesi.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/k2t6pigv1r4q0rqiembt69mrea/24768688058.pdfIn PDF document text
    • http://wittlich-luexem.de/userfiles/file/kajegodexajujinamomesobos.pdfIn PDF document text
    • https://ymvii.com/admin/upload/files/wuxusajavivedexa.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/zejox.pdfIn PDF document text
    • http://www.weilandensemble.nl/ckfinder/userfiles/files/nijexelilope.pdfIn PDF document text
    • http://ehomerealestate.org/images/file/88306648690.pdfIn PDF document text
    • http://test-webursitet-ru.webursitet.ru/Files/file/jorira.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1622065122a810---84689432143.pdfIn PDF document text
    • https://www.apsar.es/assets_back_office/js/plugins/kcfinder/upload/files/87150573099.pdfIn PDF document text
    • https://corianderedmonton.com/ckfinder/userfiles/files/suden.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=equivalent+ratios+worksheetPDF 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 extracted file (font_00_sfnt_off0002bb77.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002bb77.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002bb77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB77 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002d297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D297 10680 bytes
SHA-256: fe19ec2b41c3cf964777670f8b18f727402be8b071b8025f3f4767bcf3f7abad
font_02_sfnt_off0002eb14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB14 16732 bytes
SHA-256: 4ae498d40b999b9b6bc5b4152bcd6f7037080f7c379ca7e9ca0fcc8223f2a326