Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc14a39ec730d48…

MALICIOUS

PDF

376.9 KB Created: 2022-03-24 12:35:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 484463c8c521f333041db83e750ee6fa SHA-1: e52da4982fe440cf9fee0d112279055bf54de98a SHA-256: 3bc14a39ec730d48898358a126434c1211d0d9e51e25067ebc86ec21815539ff
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9030

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 http://technocom.pl/editor/file/sunoz.pdf In PDF document text
    • https://thefencedocumentary.ca/adminfiles/file/bewuzid.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/vimaru/20220228/file/11397142043.pdfIn PDF document text
    • http://www.praasia.com/file/files/biwuko.pdfIn PDF document text
    • http://bighost.vn/uploads/userfiles/file/wesukulopataw.pdfIn PDF document text
    • http://gancza.pl/userfiles/file/purazewezanibovada.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1623687501707a---bujazotokijagu.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/wopafuzutusafasejonixom.pdfIn PDF document text
    • https://ph-easycome.com/userfiles/file/widofegomeb.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/ebbde6a83a38440370cdb531468fb214/ruxaruperul.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/wazuvujagepojidalolupimif.pdfIn PDF document text
    • https://eatorhours.org/e-bussiness/fckimages/file/nivudipar.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/162256f8f4647b---mipevisinapiku.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/nifagefipakazu.pdfIn PDF document text
    • http://bargam.portalservices.it/public/userfiles/file/nuwovomozekizedujowepi.pdfIn PDF document text
    • https://hiroyoung.com/data/files/xirulivabopulofufetepu.pdfIn PDF document text
    • http://hilimall.ae/uploads/files/wojizapasogewafope.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=chemical+engineer+handbook+free+downPDF 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_off00056caa.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00056caa.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56CAA 21808 bytes
SHA-256: c1803a772ad0fae3897a0f7c397c7a3b17741c1f67b3e02731b5239a90141b10
font_01_sfnt_off0005a3e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3E0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005bb00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB00 11004 bytes
SHA-256: 994b37c0bedef37b61d1c899888f560baa8b4c8bbfd8761e1b0a8ec3f55c7974