Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e1834788aba373…

MALICIOUS

PDF

475.9 KB Created: 2022-03-10 10:27:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 7da9ca739b072f402b9c6ed5abb55b71 SHA-1: cfa2c93afe030a5036a09d3d58974037b4065744 SHA-256: d3e1834788aba373f674a009175731d867c7eabe520f60bf069fbb57c9a6852b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4717

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://norin.co.za/XSRYdR1H?utm_term=best+calligraphy+guide+book PDF link annotation
    • http://pro-roubenky.cz/UserFiles/File/zuvagat.pdfIn PDF document text
    • http://novafish.it/userfiles/files/86880056477.pdfIn PDF document text
    • http://universalthailand.com/images/uploads/ckfinder/files/senukuxe.pdfIn PDF document text
    • https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/gumegalaxovenabajapopuxow.pdfIn PDF document text
    • http://gryfarmerskie.pl/pliki_wyswig/files/xazojabotepadevulexagizi.pdfIn PDF document text
    • http://kotrackusa.com/fckedit_file/file///20220212_22_18_37.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1622307914a2d9---zanomifuwobopive.pdfIn PDF document text
    • http://bluecars.pl/userfiles/file/dupaxutidutavovomimi.pdfIn PDF document text
    • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/161faf77baedef---92089598379.pdfIn PDF document text
    • https://www.kindspring.org/inc/ckfinder/userfiles/files/26877057547.pdfIn PDF document text
    • https://ojazzdance.fr/userfiles/file/jarevovomuxem.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ol4slgmt2qa47s36uei0129nn0/jogos.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20220213052536.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162174b25d7240---79880622899.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1621acadb34f87---32670306735.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/f0e89c8700b9d65e1b51c2de338d7504/66415944367.pdfIn PDF document text
    • http://nepallooms.com/imagenes/file/lefurofilavosofexuva.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/43534322940.pdfIn PDF document text
    • https://daynexweb.com/upload/ckfinder/files/64988235420.pdfIn PDF document text
    • https://bestcaps99.com/ckfinder/userfiles/files/49966509038.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162298775a5e2d---vuxegedugerodufovizome.pdfIn PDF document text
    • http://udelimpa.es/ckfinder/userfiles/files/dimarif.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16213609db2bfe---gisozizegerajolu.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/52bf4913444a947554157d0affb072dc/kerugibalezifuxugubi.pdfIn PDF document text
    • http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/sewutobidixig.pdfIn PDF document text
    • https://www.datacom.com.br/assets/admin/ckeditor/kcfinder/upload/files/42667069153.pdfIn PDF document text
    • http://alacarte-husum.de/userfiles/file/luzakere.pdfIn PDF document text
    • https://libertyrealestate.in/ckfinder/userfiles/files/56437352111.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/86024587113.pdfIn PDF document text
    • https://carnac.kendalch.com/upload/files/poniras.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16208b765da3e7---86836277843.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/43usjq6ougcu3rie2gjj2eq0ps/36586252596.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_off0006fd0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD0C 18516 bytes
SHA-256: c4352ab2909da42736874b7366da14e0cb06aad5ffdc9f84f4e1a6c45a74a5ca
font_01_sfnt_off00072db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DB1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000744d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744D1 11188 bytes
SHA-256: ff747ce0ca6b23d4ddf71c91b3a95955cbe2b1137b17fd30949d60edeffec405

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