Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe834956731f307…

MALICIOUS

PDF

338.6 KB Created: 2022-03-02 19:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 9764db21a83cb130ba82cf9b8f3257be SHA-1: 8dcd95795fc1478e72cef01c32dabfcf0ef3d617 SHA-256: cbe834956731f307e4355c273bdd8e161ce97d0e06294538e6319fbd15100528
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://acgroupenterprise.com/userfiles/file/15028331127.pdf In PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1620026bd11b51---42808691855.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/161fcb6cb537cb---19562099518.pdfIn PDF document text
    • http://secretsocietygroup.com/temp/vinney/HTML/userfiles/file/20864718893.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/3337231511.pdfIn PDF document text
    • https://matraci.info/UserFiles/File/dimulifuxasugufofewa.pdfIn PDF document text
    • https://gilbertems.com/videos/file/15654526291.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16217d7994e949---lemugiki.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/funowaxirorejis.pdfIn PDF document text
    • http://rmgoals.com/userfiles/files/nelulazezepopinupoguki.pdfIn PDF document text
    • http://geraldinekilkelly.ie/18543393420.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/162199c3fecdbd---64282302989.pdfIn PDF document text
    • https://riondene.ch/img/uploads/file/62446025617.pdfIn PDF document text
    • http://mimarkamilozkartal.com/userfiles/files/48266339538.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/11589715.pdfIn PDF document text
    • http://www.bennex.co.th/assets/kcfinder/upload/files/42210602646.pdfIn PDF document text
    • http://www.tributosantafesinos.com.ar/admin/kcfinder/upload/files/lugakerubojadonorizixos.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620ec9e41fc78---74888512579.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/85087395793.pdfIn PDF document text
    • https://dance-lab-new-delhi.com/userfiles/file/gepexipoxozusas.pdfIn PDF document text
    • https://bdlvn.com/steel/upload/files/furuzokejizutujure.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/26263211319.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621950767af54---soxumagum.pdfIn PDF document text
    • https://makojudo.pl/zdjecia/fck/file/xevufovaxujikivifi.pdfIn PDF document text
    • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/79592605190.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162070c9f69e81---63697429297.pdfIn PDF document text
    • http://gulfcoastlist.com/userfiles/file/senamuwuwilon.pdfIn PDF document text
    • http://sms-dk.com/FileData/ckfinder/files/20220206_1332B137F2EAE1ED.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/34179249482.pdfIn PDF document text
    • http://sjanzee.nl/file/fewinixabobijati.pdfIn PDF document text
    • https://devcons.org/uploads/userfiles/files/90292030558.pdfIn PDF document text
    • https://getadoc.in/ckfinder/userfiles/files/jofivufugifisawejuni.pdfIn PDF document text
    • http://ucinnovation.ru/admin/ckfinder/userfiles/files/jubobotademesubokedoleg.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=edit+invoice+template+odooPDF link annotation
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/e7445b75691c675922c50ffe7a5362fe/ruxen.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 extracted file (font_00_sfnt_off0004df6a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004df6a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004df6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF6A 10456 bytes
SHA-256: d84ada7c858ea71517d9a7924e28a03c783ff590915c77721e9150418e984fa3
font_01_sfnt_off0004f71b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F71B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00050e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E36 17204 bytes
SHA-256: efffe69743349b64e05bce12bf0dfe893000e99025c5cc5e3c4e0a9b41eb926d