Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0cf72200e72fd61…

MALICIOUS

PDF

364.8 KB Created: 2022-02-07 07:09:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: caa9ac40c0cd67aed59ded248fde5261 SHA-1: a3bb0c24c609a409df65c50db3e3e06e4afcec21 SHA-256: f0cf72200e72fd61b84e98db81700551d463082cbe2dd104cf6a9ce4ca3d37de
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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://tianfonmm.com/d/files/25654654680.pdf In PDF document text
    • https://kuadrifoglio.it/upload/userfiles/files/22147216629.pdfIn PDF document text
    • https://ls-machinery.com/uploadpic/files/202108141018315666.pdfIn PDF document text
    • https://e2imgu.ratnatelenet.com/UserFiles/file/15728800687.pdfIn PDF document text
    • https://marosme.ro/hirek/file/10266579723.pdfIn PDF document text
    • https://castilloexterior.org/ckfinder/userfiles/files/kinofivamikudade.pdfIn PDF document text
    • https://njshore.drinkpoint.com/uploads/files/nerudojosunijefasif.pdfIn PDF document text
    • http://hcm-invoice.vn/hinhanh_fckeditor/file/gikenosu.pdfIn PDF document text
    • http://biafrapol.pl/pliki/file/rofesese.pdfIn PDF document text
    • http://aranykoronakft.hu/userfiles/file/86092180012.pdfIn PDF document text
    • http://garage-fuji.jp/js/upload/files/wapotubesipujulipuwofa.pdfIn PDF document text
    • https://mimpishio2.com/contents/files/5029718747.pdfIn PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/92285646072.pdfIn PDF document text
    • https://dm288.rs/slicice/file/98902954878.pdfIn PDF document text
    • https://imahima.xyz/js/ckfinder/userfiles/files/25520923029.pdfIn PDF document text
    • http://jezirka-biobazeny.cz/UserFiles/File/zomiverusi.pdfIn PDF document text
    • https://nk-sostanj.si/files/file/medojudebup.pdfIn PDF document text
    • http://nipissing-lodge.com/clients/b/be/be32fa5c9d1e5a871f1efa0d35b29fe7/File/64692273820.pdfIn PDF document text
    • http://cuoredicane.it/userfiles/files/17974519129.pdfIn PDF document text
    • http://humanlitech.com/files/files/pozasojetuzobibukonok.pdfIn PDF document text
    • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/63921197314.pdfIn PDF document text
    • http://bbu.vn/Images_upload/files/sumesov.pdfIn PDF document text
    • https://cvsc.co/userfiles/file/83354451049.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/lutanutibedemunutonemoj.pdfIn PDF document text
    • https://www.abh.net.br/kcfinder/upload/files/wujobejakapekat.pdfIn PDF document text
    • http://tuecpa.com/file_media/file_image/file/tomopo.pdfIn PDF document text
    • http://livelyway.com/ckfinder/userfiles/files/benapuxegigaguvub.pdfIn PDF document text
    • https://skostishoes.com/userfiles/file/33198647161.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/goviga.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=mcgraw+hill+connect+algebra+2+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_off00054b23.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00054b23.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54B23 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00056243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56243 10848 bytes
SHA-256: 6a882d230851429dc03a9c6af3cb3f8e95888ca4ab104a441e48be6af13945c7
font_02_sfnt_off00057b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B67 15824 bytes
SHA-256: f9f2957d47e74fe2a080f841e07407fa8f9f324b286dafba78fdf4dfc00b23a3