Malicious PDF — malware analysis report

Static analysis result for SHA-256 445364d5b5ab89e2…

MALICIOUS

PDF

292.1 KB Created: 2022-03-07 16:03:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: a4bef69b19785567525ae1a62e59663a SHA-1: 8cfa2d3314663062f049d6ad21bdaae00a732ec0 SHA-256: 445364d5b5ab89e2ef4870dfae77296f42174022732d8095ed23a591a086c1b7
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains embedded JavaScript and multiple external URIs, including one identified as an SEO redirector for free-download phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection or execution of a secondary payload, contributing to the phishing or malware delivery objective.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6835

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://lazav.co.za/XSRYdR1H?utm_term=gracie%27+s+theme+piano+sheet+music PDF link annotation
    • http://leviedelsignore.it/gallery/files/jufofosemolokabe.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/162194542c27cb---77729697753.pdfIn PDF document text
    • https://247christianity.org/fckeditor/userfiles/file/tuxefativ1645306365.pdfIn PDF document text
    • http://briztravel.com/upload/files/sexosozusatebewotifi.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/9ffcb9db30ba74491f6ca088a53d43e6/24785981924.pdfIn PDF document text
    • http://ekkerszerviz.hu/userfiles/file/tuxezu.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/zabagopejiwuwikasimazoler.pdfIn PDF document text
    • http://kiiga.ru/userfiles/file/xogivufawamikaba.pdfIn PDF document text
    • http://fredericjean.net/oplusco/file/60628472598.pdfIn PDF document text
    • https://atlas-consulting.ro/fckeditor/fisiere/file/telasapimuzowoda.pdfIn PDF document text
    • http://fairfresh.net/assets/admin/ckeditorimage/files/venufedilawaxi.pdfIn PDF document text
    • https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/konasusulovofurujanesup.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/5387d469887a3c527d103c7864997497/3498291674.pdfIn PDF document text
    • https://tahuacoop.com/cms_gpadmin2015/sgi_userfiles/userfiles/files/66600791896.pdfIn PDF document text
    • https://www.cistarekaupa.cz/kcfinder/upload/files/3010586339.pdfIn PDF document text
    • http://studiotravenzolo.it/userfiles/files/tesitemamebarulabipeti.pdfIn PDF document text
    • http://livestocksaltlicks.com/ckeditor/kcfinder/upload/files/90515522257.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/78391180319.pdfIn PDF document text
    • http://shengyaweb.com/uploadfile/file/2022022607532766.pdfIn PDF document text
    • http://duda-tech.pl/dudatech/upload/file/47405379492.pdfIn PDF document text
    • http://www.banzolaassociati.com/gestlab/kcfinder/upload/files/siwaz.pdfIn PDF document text
    • https://noble-program.site/js/ckfinder/userfiles/files/zipojikegaju.pdfIn PDF document text
    • http://gramercygrand.ru/files/file/baluwosuvaj.pdfIn PDF document text
    • https://solidpractise.com/files/userfiles/file/79594859468.pdfIn PDF document text
    • http://cadex-forensique.ch/app/webroot/kcfinder/upload/files/javax.pdfIn PDF document text
    • http://hongphuc.vn/userfiles/file/63209332920.pdfIn PDF document text
    • http://www.szphotar.com/admin/img/files/dizudubaxixane.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_off0004214d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4214D 10764 bytes
SHA-256: aaec1d3eb4c675e92bddbcc8cd055027e9d63b7baa292b8dd6bc4a3633a3c189
font_01_sfnt_off000439fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439FA 18020 bytes
SHA-256: e43a2cd5d90682396784eb9a2cea0e5646167ff0ddd85ca29a92daf13a655fd4
font_02_sfnt_off000469ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x469AD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9