Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99c00a7a9033387…

MALICIOUS

PDF

208.9 KB Created: 2022-03-05 17:50:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 698ed9bd1bd80f341cab413834c155e5 SHA-1: 36dfaaea1aca7b34ebb93fb5a637b3e22d668c7d SHA-256: f99c00a7a9033387efa903999dac95055c2aeb37bd1c14039eb331127f104f4b
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a high-risk heuristic firing for a SEO redirector link, indicating a phishing attempt. The ML classifier and ClamAV detection further support the malicious nature of the file. The embedded JavaScript likely facilitates the redirection to the phishing URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8654

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://lovig.co.za/XSRYdR1H?utm_term=csgo+twitch+livestream+overlay+template PDF link annotation
    • http://dobrodetel-tula.ru/kcfinder/upload/files/61590748830.pdfIn PDF document text
    • http://analhospital.net/file/files/zotewewuna.pdfIn PDF document text
    • https://mandaljeebanking.in/ckfinder/userfiles/files/3335285915.pdfIn PDF document text
    • http://gtlitalia.com/userfiles/files/27736254522.pdfIn PDF document text
    • http://zezoalza.com/ckupload/files/22340441031.pdfIn PDF document text
    • https://aleksandarshoes.com/storage/files/61745324037.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/161fb7c22a93df---64730222667.pdfIn PDF document text
    • https://igmof.com/admin/js/kcfinder/upload/web_file_ig_1/files/gomeso.pdfIn PDF document text
    • http://buafit.bg/Uploads/files/44791940529.pdfIn PDF document text
    • https://easb-bd.org/public/files/assets/ckeditor/kcfinder/upload/files/xikopotebusovumeke.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/66427821163.pdfIn PDF document text
    • https://dobosugyvedkecskemet.hu/userfiles/file/1675939345.pdfIn PDF document text
    • https://vcubusinesssolutions.com/userfiles/file/majizurevif.pdfIn PDF document text
    • http://555banket.ru/kcfinder/upload/files/sinomujuw.pdfIn PDF document text
    • https://tonthephunglan.vn/upload/files/bowujeno.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/6c354e0c671143e39e436a05a4853ef1/darugejofakawu.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1621508e3cee06---domuwizurof.pdfIn PDF document text
    • https://computerzone.pk/file/gejoxinipemowinaliratinot.pdfIn PDF document text
    • http://melvin.cz/data/57524087112.pdfIn PDF document text
    • https://www.pmayassam.in/assets/kcfinder/upload/files/papewigezumakuj.pdfIn PDF document text
    • http://nenayu.com/filespath/files/20220201191654.pdfIn PDF document text
    • https://mama-light.net/business_school/uploads/file/nasujikagomat.pdfIn PDF document text
    • http://www.thaiticketmajor.com/static/imgUpload/files/veguwojavizimumum.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_off0002d28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D28B 18872 bytes
SHA-256: 1183a600b953274c175895341adb424bed48d01780594d800852a01ce088ab6e
font_01_sfnt_off00030432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30432 11012 bytes
SHA-256: 2bd8a353a0e2c7173add4808eaf203f4d6eebad75446c1348e4350e10202688d
font_02_sfnt_off00031dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DEA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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