Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3903087a987fe6…

MALICIOUS

PDF

326.9 KB Created: 2022-02-27 14:08:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 8d1cbcde3e0d2203e7a7128c0c41650c SHA-1: 09e8464ae1f97d5171e0ec4f78646d9ec1edacd1 SHA-256: 4e3903087a987fe67cfa36e46daad264b001fc30a93f8406acf787d110ed09ca
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7676

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://yubit.co.za/XSRYdR1H?utm_term=constitucion+asambleas+de+dios+mexico+2013+pdf PDF link annotation
    • https://4taif.com/userfiles/file/36653403623.pdfIn PDF document text
    • https://lentes123.com/aym_image/files/guzaxil.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/89722284282.pdfIn PDF document text
    • http://abbeytraining.net/userfiles/file/xuwasewobasiviborisivesu.pdfIn PDF document text
    • http://omegabg.net/media/ck/files/12972701657.pdfIn PDF document text
    • http://dj-maily.com/uploads/pages/files/2004515276.pdfIn PDF document text
    • http://hitechdentalhouston.com/uploads/files/jenipezadatanuvesesiw.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619e89b33b8a7---18107790545.pdfIn PDF document text
    • http://limeitec.com/upfiles/editor/files/88212723881.pdfIn PDF document text
    • https://mobspace.xyz/web/img/podborky/files/65207743550.pdfIn PDF document text
    • http://blueview.nl/app/webroot/files/userfiles/files/bomivatogopeni.pdfIn PDF document text
    • http://countryclaim.cz/userfiles/file/padikubuzebawubi.pdfIn PDF document text
    • http://devveb.net/userfiles/file/fogitutopirukuvexanog.pdfIn PDF document text
    • http://kingsauto-bar.com/js/upload/files/talezumoso.pdfIn PDF document text
    • https://deshpanday.com/ckfinder/userfiles/files/40969077114.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/161570aa8a7c15---nakipetexarojezawesijo.pdfIn PDF document text
    • http://alianzablue.com/aym_image/files/23290190041.pdfIn PDF document text
    • http://lexprikson.com/admin/style/images/userfiles/file/77079959967.pdfIn PDF document text
    • http://exito-opakowania.pl/userfiles/file/27120919197.pdfIn PDF document text
    • http://mrsgladysosei.com/clients/f/fd/fd76c46f75d01f7adbe86f52c2a5b8c1/File/jorasitalakakofekus.pdfIn PDF document text
    • http://cn-junsheng.com/upload/file///20217315947674.pdfIn PDF document text
    • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210731040620511248vi57t5.pdfIn PDF document text
    • https://constructor.dilen.top/upload/files/jemopaz.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/fivalifijorobokidise.pdfIn PDF document text
    • https://artbynela.com/uploads/file/85574796869.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16165e5c636cdf---kozorapesisejit.pdfIn PDF document text
    • https://west-holding.com/userfiles/file/41618490714.pdfIn PDF document text
    • https://jonnesway-indonesia.com/ckfinder/userfiles/files/52814375231.pdfIn PDF document text
    • http://guchen.ru/d/files/83413242510.pdfIn PDF document text
    • https://rajakeempat.com/contents/files/33696360473.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1618995ec26af9---16774021149.pdfIn PDF document text
    • http://adams-gold.ru/archive/image/file/dagederejalidiraxamugin.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_off00049ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CA4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004b3c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3C4 11520 bytes
SHA-256: 474f80d6291eee5a9f03878c69133d2d73d990130528ddeda0f225c122dfae05
font_02_sfnt_off0004cefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CEFD 23616 bytes
SHA-256: f8c05c69fa2a94b8378d9dd8da96461f87cca5333adbfd7f32ddc995d511928e