Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d28f59d1b6ff2a…

MALICIOUS

PDF

446.8 KB Created: 2022-02-18 20:50:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 259ef9f47ce012ec23e49cc9deb119b7 SHA-1: 2289e9096306b3ff7f8e729db6e9a28b852b67cd SHA-256: c7d28f59d1b6ff2aeee99adc72a80fcd09580bc4f5c222da23fd11ff7396a5cb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5235

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://mjacz.cz/soubory/files/81658721741.pdf In PDF document text
    • http://henskeschildersbedrijf.nl/upload/budugalesivinitoto.pdfIn PDF document text
    • http://ttech.com.vn/ckeditor/kcfinder/upload/files/tenosikawadapazekuruga.pdfIn PDF document text
    • https://www.icdsa21.scrs.in/kcfinder/upload/files/vifilitasokete.pdfIn PDF document text
    • http://www.espace-hotelier.com/ckfinder/userfiles/files/65756933153.pdfIn PDF document text
    • https://idea-web.ro/app/webroot/files/userfiles/files/99883690538.pdfIn PDF document text
    • https://cncostruzioni.com/userfiles/file/48282400864.pdfIn PDF document text
    • http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/17138779155.pdfIn PDF document text
    • http://uniroll.pl/user_images/file/viwitawebezodalunifomon.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/43924731403.pdfIn PDF document text
    • http://fmmvn.net/userfiles/files/50595208303.pdfIn PDF document text
    • http://kingsap.com/file_media/file_image/file/42485687493.pdfIn PDF document text
    • http://aadcnfgl.netsociality.com/upload/files/lepozuxipazoluzovubole.pdfIn PDF document text
    • http://icltindia.in/userfiles/file/94912543787.pdfIn PDF document text
    • http://servicedental.it/userfiles/files/98351797677.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619e544f0dde1---karunilotagonagaparonoxik.pdfIn PDF document text
    • http://kondicionery-elektrostal.ru/upload_picture/file/tamopufijidizeposavinen.pdfIn PDF document text
    • https://www.e-s-c.fr/lib/ckeditor/kcfinder/upload/files/sanosilixoxopebitenamopa.pdfIn PDF document text
    • http://picart-personal.pl/fckupload/upload/file/68629931312.pdfIn PDF document text
    • http://les-dvorik.ru/userfiles/file/fazozawul.pdfIn PDF document text
    • http://myblindz.com/fck_user_files/file/widamabilafevobineta.pdfIn PDF document text
    • http://avtrak.ru/ckfinder/userfiles/files/lotenizesir.pdfIn PDF document text
    • http://www.mkfilm.it/ckeditor/kcfinder/upload/files/lejoxukopojosipojarediti.pdfIn PDF document text
    • http://domkomplekt34.ru/attachments/file/87401224240.pdfIn PDF document text
    • http://zhjpharm.com/upload/files/motujemolunejil.pdfIn PDF document text
    • http://zhouzhuanx.com/v15/Upload/file/2021891846478540.pdfIn PDF document text
    • http://paneldeconso.com/userfiles/file/lepimadimerubilidifusabi.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=economic+development+book+answersPDF 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_off00068a0a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00068a0a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00068a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A0A 11044 bytes
SHA-256: 95555cb43aa049a5000b64d15db6034345f930f1cf3994acbbf785df6281a156
font_01_sfnt_off0006a387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A387 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006baa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAA2 18084 bytes
SHA-256: 11a923ed906d9c9cd4be154650cd8d0f7e3fc19be7ac89e3352b56d5d4031e49