Malicious PDF — malware analysis report

Static analysis result for SHA-256 af24a76bc501254f…

MALICIOUS

PDF

75.7 KB Created: 2022-04-21 01:47:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 77faa93a909f6b33b881925b64faddca SHA-1: 85f6f8d891e365f1abcfc3b1d972bad82da0c144 SHA-256: af24a76bc501254f25cc24ddf6eb8c14335e0fde32c63ac016230b3e4a2560ed
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mifuj.co.za/YmrXLWy8?keyword=houston%20texas%20zip%20code%20covid PDF link annotation
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622c2bd9181a9---tetikuzefedikiborikuf.pdfIn PDF document text
    • http://bluebirdcanada.com/FileData/ckfinder/files/20220211_16F55CC59F56DF39.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/desusepejofibaxala.pdfIn PDF document text
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/19946127888.pdfIn PDF document text
    • https://piphoto.tw/uploads/files/202203181804257134.pdfIn PDF document text
    • https://autoteam.in/ckfinder/userfiles/files/wixagelozugevanil.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/malugusitexexizetajobal.pdfIn PDF document text
    • https://www.pianoeg.de/admin/ckeditor/kcfinder/upload/files/bosukob.pdfIn PDF document text
    • http://immobiliareborghi.com/userfiles/files/77745507115.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/55736392088.pdfIn PDF document text
    • http://s8radziejowice-paszkow.pl/userfiles/file/22706408932.pdfIn PDF document text
    • https://projetovm.com/uploads/files/20759081624.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/pusubewetavu.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16225118e19362---sivomitomabagezopalaxotij.pdfIn PDF document text
    • https://zenmobile.in/jaipriyart/uploads/files/62816680878.pdfIn PDF document text
    • http://modern-pro.ru/files/file/walogilixibu.pdfIn PDF document text
    • http://snbh.imadiff.net/kcfinder/upload/files/waluvujez.pdfIn PDF document text
    • https://stancijanegrin.com/userfiles/file/18792900451.pdfIn PDF document text
    • https://ka-base.no/images_students/files/97327106530.pdfIn PDF document text
    • http://jesupraguefilm.cz/pic/files/sikanojavuxa.pdfIn PDF document text
    • http://ayurvedicclinic.org/userfiles/file/tunipurexedogikoje.pdfIn PDF document text
    • https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/mamete.pdfIn PDF document text
    • https://www.lsv-wittlage.de/ckfinder/userfiles/files/gujujupadepasaxat.pdfIn PDF document text
    • http://retroscope.menu-card-maker.com/uploads/files/64932682250.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_off0000c3bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BF 10680 bytes
SHA-256: e48d5cbf2d31927085cd31aa9050a72369393fa4177066fa340f779c0d3224d6
font_01_sfnt_off0000dc6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6D 16960 bytes
SHA-256: aa9f73b8d27688a565419df77170fc01eb31c29571e5571ce2d9d9d958fd1679
font_02_sfnt_off0001089e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1089E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1