Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3900979b68942e…

MALICIOUS

PDF

372.3 KB Created: 2022-03-04 05:21:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 7db3c29fdbe570b8b3ba453fee5af87e SHA-1: d9a173ccba4a18cae03cd812e03487c41c08788f SHA-256: 4e3900979b68942e38ee85b0cde948ee16156a0880e0536de3287a550df2d13b
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9615

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 https://colod.co.za/XSRYdR1H?utm_term=beethoven+fur+elise+piano+mp4 PDF link annotation
    • http://www.forsheda.se/admin/kcfinder/upload/files/bomugolikujemeza.pdfIn PDF document text
    • http://celyroknaterase.sk/editor_uploads/system/files/gapufelurot.pdfIn PDF document text
    • https://houstoncoinshow.org/FCKeditor/file/21332838178.pdfIn PDF document text
    • http://gucaoyun.com/uploads/file/241509153553.pdfIn PDF document text
    • http://urbanelect.com/userfiles/file/89815989770.pdfIn PDF document text
    • http://hanlacsclub.com/ckupload/files/dilamibavawozuvepa.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/19749533018.pdfIn PDF document text
    • https://bticino-rozetki.su/kcfinder/upload/files/jupojizitunorapel.pdfIn PDF document text
    • http://lasantitosrestaurant.com/userfiles/file/rasawofofafufofevovaxewa.pdfIn PDF document text
    • http://hrjok.com/uploadfile/file/36800839078.pdfIn PDF document text
    • http://mazurubezpieczenia.pl/zdjecia/fck/file/keloropazubovadolekizixo.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/sagobotavasitaxagizukar.pdfIn PDF document text
    • http://www.procuradoresgipuzkoa.com/js/ckeditor/kcfinder/upload/files/11128896948.pdfIn PDF document text
    • https://jnvhardoi.org/ckfinder/userfiles/files/takunirurojuzamidepi.pdfIn PDF document text
    • http://www.nnlb.com.np/demo/public/ckeditor/kcfinder/upload/files/barereturarodul.pdfIn PDF document text
    • https://mountmoriahcamp.com/media/latubivakaruw.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/38271c16e1584b5c8040271bdef03668/getexajowozezojomul.pdfIn PDF document text
    • http://ecohouse-lab.de/userfiles/file/61552753497.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_off00055c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C46 10920 bytes
SHA-256: df84d7c7b45f02af072fdc275f30e0fbc384ec5218709cdde747a7dc658ff4cb
font_01_sfnt_off0005757a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5757A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00058c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C95 19880 bytes
SHA-256: 554ce9a0d31930832559041fcfc78723a1ee4690adbf6a74d33be07f97dffb70

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