Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd72a10dee281eed…

MALICIOUS

PDF

248.4 KB Created: 2022-01-05 03:50:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 811beb42102770c3b33f6e19e943ea31 SHA-1: 663cefa876be8d8cba9a70fce215f246dc01686c SHA-256: cd72a10dee281eed48b758569dd1d72f3a15fa3b9208b88c07f0dc7c3e8e922c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7982

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://akademia-jedenastka.pl/zdjecia/fck/file/ximiwuloposab.pdf In PDF document text
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/739abb2fa8524386652a7f0fa263e267/jutam.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/tomivebelowonufatozo.pdfIn PDF document text
    • http://jmvlpslimited.com/ci/userfiles/files/xavibe.pdfIn PDF document text
    • http://lmleadmanagement.com/userfiles/files/vodimesexakofonadek.pdfIn PDF document text
    • https://tanthueviet.vn/img_data/files/suturajilewowowasizun.pdfIn PDF document text
    • http://industrialdevices.in/uploads/daguvosiru.pdfIn PDF document text
    • http://antitumor.org/filespath/files/20211106031629.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/2848192355.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/pifisemebolevibudopux.pdfIn PDF document text
    • http://myphamlulanjina.com/upload/files/korixivevudosiju.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161ca1a455ce3e---govetakesoziwamironaf.pdfIn PDF document text
    • http://bkpsdm.cirebonkab.go.id/kcfinder/upload/files/ruvakopukafe.pdfIn PDF document text
    • https://birsamundapark.in/userfiles/files/43851910026.pdfIn PDF document text
    • http://xn----7sbabjlebzbdsbxti2bw3r.xn--p1ai/files/files/12037252221.pdfIn PDF document text
    • http://innotack.com/userfiles/files/72009946141.pdfIn PDF document text
    • https://jackinthegym.com/uploads/files/202109052030198794.pdfIn PDF document text
    • https://grdr.org/paidel/ckfinder/userfiles/files/869327011.pdfIn PDF document text
    • http://yourtruck.be/upload/ckeditor/file/26919211227.pdfIn PDF document text
    • http://fsnmmaterials.com/UPFILE/userfiles/files/bunirenuso.pdfIn PDF document text
    • https://0924055971.com/uploads/files/202110310812355867.pdfIn PDF document text
    • http://falconltd.pl/cache/file/sonezozagiwep.pdfIn PDF document text
    • http://lixupeng.com/uploads/files/sobemesagopizuzujesoniba.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/HTGXzuRVGb4/uplcv?utm_term=underlying+assumptions+of+financial+reportingPDF 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_off000374ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374EE 11184 bytes
SHA-256: ad198a4cf8666d0f9279f901f595ed76f757bb5d62ae79c4635c8a7ba6e04e57
font_01_sfnt_off00038ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38EE6 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0003a585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A585 17464 bytes
SHA-256: ded5292fc4d29e8888e79c97b0ee99ff8e75b3d2a71c489ce20a93e3af9755a5

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