Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7c8d061f88c3f5…

MALICIOUS

PDF

245.7 KB Created: 2022-01-13 07:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 3c2462360352963e39b0349fdc0667c7 SHA-1: 65aa172fcb92ec30601a48fd6fcc64e159ef7ac1 SHA-256: cd7c8d061f88c3f5633bbf084eea02f63da7a70db0bf4ff1697e2bcc2ff72887
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9664

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.
  • 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 http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/94703853800.pdf In PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/r36evkflf4je4ojpjuavhmh00a/16760767111.pdfIn PDF document text
    • http://karikatura-kovarik.cz/files/file/22409563670.pdfIn PDF document text
    • http://haiqi-machine.com/d/files/68759979371.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616d987f78c2b---fawonarijurilinu.pdfIn PDF document text
    • https://nobelboya.com/userfiles/file/90915984822.pdfIn PDF document text
    • http://artkulinaria.pl/sites/default/files/file/nadikutuj.pdfIn PDF document text
    • http://theprofitnesstrainers.com/userfiles/file/2952504925.pdfIn PDF document text
    • http://professional-tuner.at/uploaded/file/zutunufebikuxifo.pdfIn PDF document text
    • https://truongthanhco.vn/webroot/img/files/simemox.pdfIn PDF document text
    • https://www.cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/36890599153.pdfIn PDF document text
    • http://tndgdemo2.com/ckfinder/userfiles/files/39862838373.pdfIn PDF document text
    • http://hzbmsj.com/images/upload/File/72020787681.pdfIn PDF document text
    • http://www.physedu.in/newsite/userfiles/files/62802997579.pdfIn PDF document text
    • http://argyleliquidations.com/userfiles/files/11260888135.pdfIn PDF document text
    • http://novafish.it/userfiles/files/minigipusexutazewepegem.pdfIn PDF document text
    • http://ort168.com/upload/ckeditor/files/wafeviw.pdfIn PDF document text
    • https://erimti.com/userfiles/file/nososapivipuranenu.pdfIn PDF document text
    • https://solucionaesp.com/ckfinder/userfiles/files/molunajanivapibutipagega.pdfIn PDF document text
    • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/95921780029.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=basic+english+850+words+list+pdfPDF 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 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_off00036d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D02 11504 bytes
SHA-256: 5ea7e68e3870b05b6e8191b637f02a664747dad4c18f9a1ab6a37695aa1f77f6
font_01_sfnt_off00038813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38813 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00039eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39EB2 15996 bytes
SHA-256: becd908c011f720ecdeff4d238ea4d4185a45229d3f16f5a2e76e60835d31e24

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