Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa871d5f9091427f…

MALICIOUS

PDF

215.8 KB Created: 2022-03-21 19:01:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: c494a625e0468a70e09e0283dd9f6033 SHA-1: 882ad73aed5e764a447c3cf3ea83488aba33c147 SHA-256: aa871d5f9091427f6f2765d8e3c17621d351351e40fb7e912442f911f25c2306
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7618

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 https://sunuf.co.za/XSRYdR1H?utm_term=modelo+de+democrito+y+leucipo PDF link annotation
    • http://katela.net/userData/board/file/45383812988.pdfIn PDF document text
    • http://draftingfloorplan.com/ckfinder/userfiles/files/83559162975.pdfIn PDF document text
    • http://t-700.net/upload_img/files/62572245474.pdfIn PDF document text
    • http://praxis-greve-polley.de/web/editor/files/dobinijopurun.pdfIn PDF document text
    • https://olafree.gr/admin/images/wadanabividorino.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/srth49urrjsltbbigrpcth1b2t/89346626112.pdfIn PDF document text
    • https://iwnta.com/userfiles/file/22545633852.pdfIn PDF document text
    • http://www.tamtrebinhminh.com/public/files/85177778465.pdfIn PDF document text
    • http://angolfuvar.com/admin/ckeditor/kcfinder/upload/files/padawutirof.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/gapefu.pdfIn PDF document text
    • http://tnet.site/kcfinder/upload/files/54809417014.pdfIn PDF document text
    • http://roler-dv.ru/upload/files/71253972746.pdfIn PDF document text
    • http://moscowcharm.com/content/xuploadimages/file/kipugozumugumup.pdfIn PDF document text
    • https://gift2goa.com/ckfinder/userfiles/files/wurafoterixipixoduwuxo.pdfIn PDF document text
    • http://akwarella.pl/user_uploads/file/7925247833.pdfIn PDF document text
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/162342c96a1e4d---16274302684.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/monozukik.pdfIn PDF document text
    • https://xebecdesign.com/xebec/userfiles/file/34954660979.pdfIn PDF document text
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/rusujuzud.pdfIn PDF document text
    • http://stellarp.com/userfiles/files/kadegurugebasefavexawa.pdfIn PDF document text
    • https://kimcert.com/E/file/93523925057.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/41822000643.pdfIn PDF document text
    • https://dondepodemosir.com/userfiles/file/85929813630.pdfIn PDF document text
    • https://e-fasteners.eu/media/file/10525936216.pdfIn PDF document text
    • https://annekienlen.fr/imagesfile/gakikanesadegotoge.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/45963084108.pdfIn PDF document text
    • http://agenturamotivace.cz/uploadfiles/file/tokafi.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_off0002ecc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECC4 20420 bytes
SHA-256: 827a3fae66a47120183045f6bdaba4714a64fa084836ffbbf6e0c140d208f1ba
font_01_sfnt_off00031fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FA3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000336c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336C3 10448 bytes
SHA-256: 8ca55de70ecd3629dc8bcbc5af29673cdf9c2b6c1955b1ef161f2ef36fd144f2

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