Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5dab55f1f964003…

MALICIOUS

PDF

314.7 KB Created: 2022-02-28 15:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 1fb44d27e5b58acc4b25f5d9d5717913 SHA-1: 4f77db95b27adf559d1070cb7c78bbadbc13af80 SHA-256: b5dab55f1f964003674b847354e4723e2ef9c2223ff953c749cc1f4fd9ae1dd5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6702

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mph.cz/upload/files/nusenoxuduwav.pdf In PDF document text
    • http://lctrading-gmbh.com/ckfinder/userfiles/files/10648912007.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/leregedilopuzep.pdfIn PDF document text
    • http://safakkereste.com/kcfinder/upload/files/53276716246.pdfIn PDF document text
    • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/93201536309.pdfIn PDF document text
    • https://sobateracota.ro/mm/file/89272418952.pdfIn PDF document text
    • https://uppersanduskyrotary.com/cms/files/File/kefikedalumuzaj.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1621259af28a2f---90312802633.pdfIn PDF document text
    • http://gr-chem.com/upload/files/dupove.pdfIn PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621a5d03d9ed7---32609431527.pdfIn PDF document text
    • http://www.assistvaleur.co.jp/inc/kcfinder/upload/files/wubenudakovojexe.pdfIn PDF document text
    • http://brcassociati.com/userfiles/files/26504269085.pdfIn PDF document text
    • http://praconsulgroup.ru/pict/file/91643913077.pdfIn PDF document text
    • https://pastravariaizvoarelebratiei.ro/images/file/34352628538.pdfIn PDF document text
    • http://homeopathyhongkong.cn/files/niganizi.pdfIn PDF document text
    • http://sherry-japan.com/uploads/files/xukos.pdfIn PDF document text
    • http://albina.jp/kcfinder/upload/files/livodemegumov.pdfIn PDF document text
    • http://shmgec.com/Uploadfiles/files/welusuwamef.pdfIn PDF document text
    • http://folientastaturen.pl/_data/file/79382268938.pdfIn PDF document text
    • http://amghanoi.com/images/ckeditor/files/zanuluzipa.pdfIn PDF document text
    • http://maksimetall.ru/files/fejer.pdfIn PDF document text
    • http://sjccgy.com/userfiles/file/kitefizad.pdfIn PDF document text
    • http://www.immat.org.tr/kcfinder/upload/files/nosarob.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/38240287689.pdfIn PDF document text
    • http://www.mustwalge.ee/data/content/files/kiwarafometibasijakubola.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/41294578571.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=guide+to+sarmsPDF link annotation
    • http://www.etiquettes-adhesives-bobine.fr/kcfinder/upload/files/fizufujuluxigidixapapedi.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 extracted file (font_00_sfnt_off00046232.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00046232.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46232 10396 bytes
SHA-256: d39160fad75b1a63e8be5af5b7acc9cf65e37225afdd73b6c745526d1ebc7e3d
font_01_sfnt_off000479c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x479C6 20292 bytes
SHA-256: 0e6f34476be56af98a52339287eeb91fb2adc92c2994c72ac98748df0a775f48
font_02_sfnt_off0004ae48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE48 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_03_sfnt_off0004c42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C42C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9