Malicious PDF — malware analysis report

Static analysis result for SHA-256 4874732fbfc820d3…

MALICIOUS

PDF

281.5 KB Created: 2022-03-13 09:13:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-22
MD5: facb34a8a27f8b6b331ed385bddef7b7 SHA-1: 2f9e1435b84f9610206c5dec0c5e7a9f5c30717f SHA-256: 4874732fbfc820d3b13d57a15fa6ad0012e82e02c764d95df2259725e60a72f5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6418

Heuristics 5

  • 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.
  • 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://www.invidea.it/kcfinder/upload/files/39494429664.pdf In PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/35830285269.pdfIn PDF document text
    • http://marketypik.pl/zdjecia/fck/file/412242518.pdfIn PDF document text
    • https://ngusacdon.com/upload/files/28241396190.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1620d845a8e8de---28155619480.pdfIn PDF document text
    • http://ibookingkr.com/FileData/ckfinder/files/20220306_C7D2D3E36F8DAE39.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/51676870666.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/63486986513.pdfIn PDF document text
    • http://turnkeyparts.com/site-uploads/20134331581.pdfIn PDF document text
    • http://geometrarontani.it/userfiles/files/83884929777.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/8298400159.pdfIn PDF document text
    • http://lola168.com/uploadfiles/file/51397240878.pdfIn PDF document text
    • https://masterjobintl.com/ckfinder/userfiles/files/jilakis.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/lesumutodusekepewakoko.pdfIn PDF document text
    • http://geshome.co.jp/cmsdesigner/kcfinder/upload/files/72313306841.pdfIn PDF document text
    • http://metroboxservices.com/upload/ckimage/files/78607519254.pdfIn PDF document text
    • http://nandnee.com/admin/ckeditor/kcfinder/upload/files/57338771811.pdfIn PDF document text
    • http://wedding-box100.com/uploads/files/202202221358176728.pdfIn PDF document text
    • http://appli-veolia.net/ckfinder/userfiles/files/18016184137.pdfIn PDF document text
    • https://minhjazzvietnam.com/kcfinder/upload/files/33394303099.pdfIn PDF document text
    • https://openkomm.yussfone-crm.com/userfiles/file/potetebuni.pdfIn PDF document text
    • http://xhslsh.gdx.cn/ckfinder/userfiles/files/zilajonazufokubo.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/14684506604.pdfIn PDF document text
    • https://solinov.com/upload/editor/file/76857914359.pdfIn PDF document text
    • http://mastera-mix.ru/ckfinder/userfiles/files/26829687921.pdfIn PDF document text
    • http://www.colormotion.cz/UserFiles/file/supajupuvuxe.pdfIn PDF document text
    • https://phr4u.com/files/66390585473.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/c41c6dab4e23c2766f086231867e819f/xeratadofisenodone.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/jelanef.pdfIn PDF document text
    • http://xn----7sba5bgeydgh6hd.xn--p1ai/upload/files/35857235985.pdfIn PDF document text
    • https://residenciasanamaro.es/userfiles/files/rozakubatixumukuvufekobo.pdfIn PDF document text
    • http://architettotamborra.eu/userfiles/files/zererimowub.pdfIn PDF document text
    • http://mynotary.ca/sites/all/sites/mynotary.ca/files/48336097682.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=best+free+website+templates+for+small+businessPDF link annotation
    • 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_off0003dd2b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003dd2b.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003dd2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DD2B 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_01_sfnt_off0003f30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F30F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00040a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40A2A 19024 bytes
SHA-256: 73c0b9a9d48d6f0328b695095fe0ec7d61cb6e72f4d0114102c24d141c814de6
font_03_sfnt_off00043c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43C6F 10900 bytes
SHA-256: 7ce94b34d623d814ac3f79b583d5cdf1bd08bc3b79f7667db0470bfdb2b49e47