Malicious PDF — malware analysis report

Static analysis result for SHA-256 425ae76ddce2886a…

MALICIOUS

PDF

525.8 KB Created: 2022-02-26 04:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 2b93cd5480985c94b162f8296d6ae653 SHA-1: 12b9bbe3f9d7184258ea198651d0024210f4c261 SHA-256: 425ae76ddce2886a2554d040c35f6ef2a19c0b109d48425cee72f6c7acad5042
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3491

Heuristics 6

  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=aptitude+test+question+with+answer+pdf PDF link annotation
    • http://74ahs.com/clients/2/2a/2a132ee8da0778863662fd4b1fa251ed/File/40592994065.pdfIn PDF document text
    • http://mlspoland.co/files/file/34459134768.pdfIn PDF document text
    • http://uptindia.com/newsimages/file///retugojoluzavudirej.pdfIn PDF document text
    • https://www.xtraordinaire.org/web/kcfinder/upload/files/24262937053.pdfIn PDF document text
    • https://lesura.net/userfiles/file/gozoradizaf.pdfIn PDF document text
    • http://xn----7sbev0bhje.xn--p1ai/images/news/file/dutamusoluxuwajesu.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8fc533d0a6---57869237663.pdfIn PDF document text
    • https://electrodomesticaruano.com/images/ckfinder/files/59126161505.pdfIn PDF document text
    • http://hotelbellevuepalermo.com/userfiles/files/mulojilowamokukokajezav.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/wukijibagiro.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16144c2ccd5442---jibanulunulujifumo.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/3395824339.pdfIn PDF document text
    • http://imhome-listings.com/userfiles/files/zowajatofonibowujokuridat.pdfIn PDF document text
    • https://aicpwdosaeast.com/ckfinder/userfiles/files/gijexabumat.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/d1fb77646613b5291db9161167653c66/87759496714.pdfIn PDF document text
    • http://1carl.com/userfiles/file/50833002973.pdfIn PDF document text
    • http://duhocnhat.vnpc.vn/images/noidung/files/32064235798.pdfIn PDF document text
    • http://serting.eu/userfiles/files/48559541616.pdfIn PDF document text
    • http://ksnjl.com/userfiles/files/kizatekumeliro.pdfIn PDF document text
    • http://kalkulacka-hypo.cz/userfiles/files/tesolumisokoti.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161af573f7671c---80623645913.pdfIn PDF document text
    • https://rlmahtani.com/userfiles/files/68801669739.pdfIn PDF document text
    • https://b2b-intelligence.it/uploads/file/butepapojebope.pdfIn PDF document text
    • https://asken.as/bilder/file/196721739.pdfIn PDF document text
    • https://petpetmates.com/files/editor/file/39646184063.pdfIn PDF document text
    • https://krygina40.ru/UserFiles/File/74396624133.pdfIn PDF document text
    • http://saiprogetti.net/userfiles/files/wufimak.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/161d64a5d963fe---vezazozetoxuxofeduvakum.pdfIn PDF document text
    • http://nbc.ua/design/pic/file/gidafipuwi.pdfIn PDF document text
    • https://aimara-bg.com/userfiles/file/gividom.pdfIn PDF document text
    • http://surausa.com/uploads/files/93554210594.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/24270980517.pdfIn PDF document text
    • https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/kepuledugow.pdfIn PDF document text
    • http://sarica.com.tr/ckfinder/userfiles/files/nubazixuge.pdfIn PDF document text
    • https://fiscalonline.eu/app/webroot/files/userfiles/files/kutaliv.pdfIn PDF document text
    • http://tutaylamhet.com/storage/ckfinder/files/33672211080.pdfIn PDF document text
    • http://daivupaint.com/img-chamthi/files/9797492619.pdfIn PDF document text
    • http://www.nbaindia.nic.in/includes/ckeditor/plugins/kcfinder/upload/files/kovurezos.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16186118ed4a5b---mukesuxu.pdfIn PDF document text
    • http://pfmconsulting.org/survey/userfiles/files/mobize.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/l525tu8lo2nnocn08pj2t9j6a1/xubizetepamaxeruzuz.pdfIn PDF document text
    • https://right.trainresistor.cc/follow/?id=124526&/wp-content/plugins/formcraft/file-upload/server/content/files/161bc09e1c3c0c---59641849894.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
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007c4a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4A8 19188 bytes
SHA-256: f84be786e0b10b6480ae7cc0e82ef62d3207775688901f3ccc1388dd4b27911a
font_01_sfnt_off0007f67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F67A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00080d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D9C 10864 bytes
SHA-256: 2a4dc9d171216c18f72294930f77b88899a162db12d11200c2e2a28e8cb657bc