Malicious PDF — malware analysis report

Static analysis result for SHA-256 4252a791cab2558d…

MALICIOUS

PDF

583.4 KB Created: 2022-02-08 00:51:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: fefdbaf9420ab261df503be6b5cc7b85 SHA-1: a2ecd13f49763342412178cb0a0d9ac149968d76 SHA-256: 4252a791cab2558dea0c4492d975e3adc70451e10e6661933930144be5d58e19
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3568

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://ragaz.co.za/XSRYdR1H?utm_term=comparison+with+adjectives+worksheets PDF link annotation
    • http://onlineauadms.com/ci/userfiles/files/49433859058.pdfIn PDF document text
    • https://ranagro.com/files/19023636381.pdfIn PDF document text
    • https://kop-trans.pl/uploads/userfiles/files/76433077136.pdfIn PDF document text
    • https://dreamscapes.ca/dream_scapes/userfiles/files/dajubutofubanawofoxin.pdfIn PDF document text
    • https://dfkcnc.shopper-store.net/file/files/wotosetitezaseg.pdfIn PDF document text
    • http://kitpaisal.com/mypicture/file/81662359258.pdfIn PDF document text
    • http://change-sexy.com/files/files/81190751651.pdfIn PDF document text
    • http://ipayon.com/root/FCKeditor/file/javagefafegijuwuditikudod.pdfIn PDF document text
    • https://bcm.es/files/galeria/files/4639720130.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/juxetav.pdfIn PDF document text
    • http://aviatechinform.ru/sadm_files/89923022886.pdfIn PDF document text
    • http://hondatayho.top/img-ngocbao/files/kofazutiridazovofugeg.pdfIn PDF document text
    • https://www.sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/42732684846.pdfIn PDF document text
    • https://www.xyoaa.org/sites/default/files/files/darejovuzidesem.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/21250710465.pdfIn PDF document text
    • https://marjoyunlar.com/calisma2/files/uploads/30544184624.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16168d920da029---xovawuxa.pdfIn PDF document text
    • http://cluboutletmoto.net/campannas/file/katasusutitixijavaku.pdfIn PDF document text
    • http://goldenstarhotel.vn/images/uploads/files/89228957236.pdfIn PDF document text
    • http://hotel-ambassador-nice.com/upload/files/78927376917.pdfIn PDF document text
    • http://tcyy88.com/userfiles/file/2021112714460773499.pdfIn PDF document text
    • https://serpavenger.com/ckfinder/userfiles/files/65943122095.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161126d4baa66b---52056501604.pdfIn PDF document text
    • https://ladangmimpi.com/contents//files/fejagiresugutipemiwib.pdfIn PDF document text
    • http://kytero.com/admin/kcfinder/upload/files/bosudakedudoz.pdfIn PDF document text
    • http://maxbrio.kr/files/files/25992444152.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/6ee9d74b53e19218f695fa1568082384/xepomabutaligowopumuwulov.pdfIn PDF document text
    • http://rosabaum.de/web/editor/files/vedoliloludol.pdfIn PDF document text
    • http://www.hangmandigital.com/files/file/88487971030.pdfIn PDF document text
    • https://static.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/23523223492.pdfIn PDF document text
    • http://pp-aqua.com/userfiles/files/wupolome.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008b427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B427 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0008cb47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB47 11140 bytes
SHA-256: e762958f5615179215dd93216d7526b72bc263e45e8b5386abf6ba5efc16715b
font_02_sfnt_off0008e521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E521 15748 bytes
SHA-256: 8eb23651f8878e57f731553289410b52d4a1c7290b229ca3e56edb663a7cda9d