Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af1f2e773c3673d…

MALICIOUS

PDF

275.6 KB Created: 2022-03-13 05:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 5b24202158281ad2d5d38f1802f74794 SHA-1: 1dd92a28f61bb44f58aae5afe8749e22d665d20e SHA-256: 4af1f2e773c3673dcd49538a0511768b6939e34295dc08c74fdc5b681f959005
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

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
  • 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.
  • 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://colod.co.za/XSRYdR1H?utm_term=photo+collage+online+template PDF link annotation
    • http://zeguvietnam.com/uploads/ckfinder/files/wevetetoxowukiruvadorobin.pdfIn PDF document text
    • https://skykharchono.mn/editor/files/dosoz.pdfIn PDF document text
    • http://pomelieagency.com/userfiles/files/marijiw.pdfIn PDF document text
    • http://ats-dz.com/userfiles/file/76696631388.pdfIn PDF document text
    • http://a1climbing.com/userfiles/files/71799909751.pdfIn PDF document text
    • http://isisorganizasyon.net/panel/kcfinder/upload/files/7239433810.pdfIn PDF document text
    • http://databaze.glaukom.cz/upload/files/wegelizupobosemuz.pdfIn PDF document text
    • http://iaestedresden.de/userfiles/file/38674907294.pdfIn PDF document text
    • http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/66923557879.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/5160585757.pdfIn PDF document text
    • http://rpsbchamber.org/editorData/file/20416883030.pdfIn PDF document text
    • https://doina.md/fckeditorfiles/file/20728594110.pdfIn PDF document text
    • https://0955205219.jwa.tw/userfiles/files/96004130540.pdfIn PDF document text
    • http://lnhaihui.com/userfiles/file/20220202035525_549120527.pdfIn PDF document text
    • http://legrand-etika.su/kcfinder/upload/files/zunamizid.pdfIn PDF document text
    • http://karinbentum.nl/uploads/file/semutin.pdfIn PDF document text
    • https://life-homeshop.com/asset/uploads/files/beravagudewemoju.pdfIn PDF document text
    • http://canlook.ru/userfiles/files/muzawivepegigofimufap.pdfIn PDF document text
    • https://residencialconilcosta.es/kcfinder/upload/images/files/nijelajowa.pdfIn PDF document text
    • http://kxnjl.com/userfiles/files/tenusezizuxorexuzu.pdfIn PDF document text
    • http://test.xn--b1adbeobutb0arf.xn--p1ai/kcfinder/upload/files/4460778683.pdfIn PDF document text
    • http://hljxt.com/upload_files/file/220212095956840276ytw8i7.pdfIn PDF document text
    • http://szboerzuo.com/upload/file/58735157003.pdfIn PDF document text
    • http://teedinmaesai.com/user_img/file/nosuw.pdfIn PDF document text
    • http://ydchem.cn/filespath/files/20220225200010.pdfIn PDF document text
    • http://szkolaprzybranowo.pl/ckfinder/userfiles/files/sogafinufogijowok.pdfIn PDF document text
    • http://www.krishnashouse.com/ckeditor/kcfinder/upload/files/65503627126.pdfIn PDF document text
    • http://kredoteka.ru/uploads/file/72204495140.pdfIn PDF document text
    • https://bakkerijkamstra.nl/userfiles/files/63336345095.pdfIn PDF document text
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/xafezurezav.pdfIn PDF document text
    • http://metallpress.ru/files/fififumusixajilovawigi.pdfIn PDF document text
    • http://djarkitek.com/temp/vinney/HTML/userfiles/file/34054247896.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621604f9a2c72---nurezadetazebazivanu.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_off0003e0d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E0D4 18144 bytes
SHA-256: bbc6682ca767eade9b20380c1bdde86a56878fd8e82f5aea1e55d2e9c841327c
font_01_sfnt_off00041046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41046 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00042766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42766 10552 bytes
SHA-256: 617130eeb12d2998f68c4ae501c063d65e14211f1d2751b7198ea011517cd8fb