Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de91498784e98cc…

MALICIOUS

PDF

306.1 KB Created: 2022-02-02 20:21:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: c8f0d9f9538d8c7e13e1d826f6ddea8a SHA-1: 94c6f0ce790f92bdda5f6f998e9fd87a7d29a78f SHA-256: 4de91498784e98cc95c9006d0c40a869920722615e7f116b6d7987c08d3af5c3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7195

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 http://raczcsalad.hu/files/rapurupotuxozamururexab.pdf In PDF document text
    • http://quartierdete.fr/uploads/fckeditor/file/morekineguxuwize.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/1402f516e405b81905323664ff818dee/65971300667.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/2b91r25g9psshroieelghoij4u/25408695839.pdfIn PDF document text
    • https://toromecanicorodeo.com/files/vagare.pdfIn PDF document text
    • http://impactmediaresources.com/userfiles/file/velujikozev.pdfIn PDF document text
    • http://dorapeyzaj.com/userfiles/file/weputivo.pdfIn PDF document text
    • http://herningbadintra.dk/app/webroot/upload/files/56440243123.pdfIn PDF document text
    • http://thietbiytedaibao.com/media/files/80725297693.pdfIn PDF document text
    • https://minhgianggroup.vn/upload/files/kepovotabugexavixa.pdfIn PDF document text
    • https://www.vg42.ru/public/templates/kcfinder/upload/files/fojawizofosubonifan.pdfIn PDF document text
    • https://konferencia2012.medius.sk/userfiles/file/31577441847.pdfIn PDF document text
    • http://orkoien.com/userfiles/files/tadalifiwopubi.pdfIn PDF document text
    • http://alfatreyd-mebel.ru/archive/images/file/39689839456.pdfIn PDF document text
    • https://gs-hemeringen.de/ablage/userfiles/files/97417124422.pdfIn PDF document text
    • http://a-aqua.fr/ressource/site-image/files/vodovunerodolud.pdfIn PDF document text
    • http://livestocksaltlicks.com/ckeditor/kcfinder/upload/files/remirevafedemuze.pdfIn PDF document text
    • http://automozg.by/upload/editor/files/pikepegule.pdfIn PDF document text
    • http://zimmerei-possert.at/siwobizeki.pdfIn PDF document text
    • https://pomacanthe-art.fr/imagebeforeafter/files/kagazo.pdfIn PDF document text
    • http://gradn.ru/uploades/fckeditorfile/lifijuzunovogedix.pdfIn PDF document text
    • http://kaizousha.com/js/upload/files/lawuraluvidojilibale.pdfIn PDF document text
    • http://luxlustry.ru/img/upload/76108749900.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/laniwotulosogomusez.pdfIn PDF document text
    • http://audiohrestomatiya.ru/content/file/44956010145.pdfIn PDF document text
    • https://linkevicius.com/upload/galery/file/20607488475.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/6irvhgjosqtvkl7tc636s63ogp/1899676384.pdfIn PDF document text
    • http://rent-lease-no1.com/userfiles/file/20211030022304.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/lelujiwu.pdfIn PDF document text
    • http://sea-cruise.ru/ckfinder/userfiles/files/sesutekofululiwowogiraj.pdfIn PDF document text
    • https://dom4m.by/userfiles/files/bazoniv.pdfIn PDF document text
    • http://babywagen24.de/userfiles/file/simepedukujelufogida.pdfIn PDF document text
    • https://10playsolutions.com/clients/softklk/documents/_articles_/file/zakidegarupulenesum.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=animal+crossing+city+folk+fish+guidePDF link annotation
    • http://gira-classix.su/kcfinder/upload/files/ramodularoroxeluv.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_off00045c8b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045c8b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C8B 11208 bytes
SHA-256: 184e9ce5e1f14f5b0357c1658aae2940ab3fe92fe656701551f954a9bf916b3e
font_01_sfnt_off00047679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47679 16536 bytes
SHA-256: 955069dde58ac4336d97ba37a260ad49521e1afef34810ea06138ed554b4b4c6
font_02_sfnt_off0004a185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A185 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9