Malicious PDF — malware analysis report

Static analysis result for SHA-256 441b9a4fac9182dc…

MALICIOUS

PDF

302.8 KB Created: 2022-04-07 20:28:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 03d78e871c3c863a12cccb862f6c8c0c SHA-1: 095124599fed387db1d44a4b9be40f060d714110 SHA-256: 441b9a4fac9182dcfaa6d62094c5662db32bf0fd413f8dff1c7d6d2c3ecec9b2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7681

Heuristics 6

  • 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.
  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=neela+bakore+biology+notes+pdf+free PDF link annotation
    • http://www.senioradviserab.se/admin/kcfinder/upload/files/78497138072.pdfIn PDF document text
    • https://wazaziti.weebly.com/uploads/1/3/4/0/134018063/liwoxovedoreperifu.pdfIn PDF document text
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/c92b0f35999d.pdfIn PDF document text
    • https://logosomuzabi.weebly.com/uploads/1/3/0/9/130969340/5065214.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa7f5210536---xakezoditotomepo.pdfIn PDF document text
    • http://safetyservicecenters.com/userfiles/file/dulusasetuvilededa.pdfIn PDF document text
    • https://niwupusig.weebly.com/uploads/1/3/1/4/131438062/cdd61bed0d4.pdfIn PDF document text
    • http://bundoreh.com/fckeditor/files/file/69979536009.pdfIn PDF document text
    • http://www.lasallelille.com/admin/ckfinder/userfiles/files/vepebulawa.pdfIn PDF document text
    • https://mesajenijapab.weebly.com/uploads/1/3/0/9/130969967/zejejatobuzunofir.pdfIn PDF document text
    • https://xanbiente.de/userfiles/file/tamopiregazagibo.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/4e6d9bb894cf1a447f176c957c33d01b/pivinewoz.pdfIn PDF document text
    • https://gikanusubidi.weebly.com/uploads/1/3/4/7/134756500/wadofapebeguzus.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/3929374.pdfIn PDF document text
    • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/kolexumat.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/271d0a1483bfca8402d553887ada974d/48449358977.pdfIn PDF document text
    • http://xn--bqrr0jw6bmw2g.com/userfiles/file/1648006068.pdfIn PDF document text
    • http://lehnerkom.de/images/uploaded/file/zivavunuloz.pdfIn PDF document text
    • http://nislamengineering-ltd.com/assets/ckeditor/kcfinder/upload/files/sijomezigamomapek.pdfIn PDF document text
    • https://jotozured.weebly.com/uploads/1/3/4/5/134588142/bawakalar.pdfIn PDF document text
    • http://hayfidan.com/admin/kcfinder/upload/files/sakowekagolojumijita.pdfIn PDF document text
    • https://pk-rowery.pl/user_pict/file/33291245628.pdfIn PDF document text
    • http://tratyfa.com/public/ckeditor/kcfinder/upload/files/solurapovibozanajivafovu.pdfIn PDF document text
    • http://yeosingol.com/FileData/ckfinder/files/20220331_6BE9D65899ED64CA.pdfIn PDF document text
    • http://grk.rigel-regensburg.de/upload/files/99258826446.pdfIn PDF document text
    • http://navicom.net.vn/ckeditor/kcfinder/upload/files/14248486601.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/kugofadutaxidebu.pdfIn PDF document text
    • https://rulipowijipej.weebly.com/uploads/1/3/0/7/130775545/2948295.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_off000446e9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000446e9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000446e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x446E9 10996 bytes
SHA-256: 7283421643fd2e99b9315c7c7210f97ed050ca18b06e094caa77db019593baed
font_01_sfnt_off00046035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46035 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00047847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47847 19556 bytes
SHA-256: 9ac3dc4ffbae767f04c9e3e57bf9bdcd37399b3e97eb8346edb9d0d191a2c534