Malicious PDF — malware analysis report

Static analysis result for SHA-256 258c4cd4a1e3df3f…

MALICIOUS

PDF

228.9 KB Created: 2022-03-03 04:12:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 2c96c10a7838f831cbeaed7fed51f033 SHA-1: ae28e28e9b71e749abfb8ebba242c7b2de8592cf SHA-256: 258c4cd4a1e3df3f94d163c484c8170e73cf670bf3ad35a30789a64e86d4a99f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8083

Heuristics 5

  • 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.
  • 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 http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/97953678504.pdf In PDF document text
    • http://matras-devison.ru/upload/file/kumekoziweniguxotew.pdfIn PDF document text
    • http://bestofbeer.ru/ckfinder/userfiles/files/41379905043.pdfIn PDF document text
    • https://divinehm.com/ckeditor/kcfinder/upload/files/zijetufipekapi.pdfIn PDF document text
    • https://www.aaptuk.org/ckfinder/userfiles/files/50037435752.pdfIn PDF document text
    • http://ridonhennet.eu/admin/kcfinder/upload/files/nasexamedadewobediseb.pdfIn PDF document text
    • http://rracc.com/file_media/file_image/file/20960740376.pdfIn PDF document text
    • https://angkaganjil.com/contents/files/tawufezovagirosofisarom.pdfIn PDF document text
    • http://grandp.ru/userfiles/file/33192655867.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/felimuxenov.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/97972239026.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/zowideru.pdfIn PDF document text
    • http://learningkey.org/userfiles/giwuxufobararunazuvigu.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/xufogibabifakezonexod.pdfIn PDF document text
    • http://rjt1.org/upload/files/40064973281.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/gosota.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/4s7q7av59bsn556aalbsr4iu78/82637646574.pdfIn PDF document text
    • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1621111bb7b2bd---80765835861.pdfIn PDF document text
    • http://videlec.be/ressource/file/22706538557.pdfIn PDF document text
    • http://bochkari1.ru/pic/file/81469404385.pdfIn PDF document text
    • http://maudchristan.nl/ckfinder/userfiles/files/tiroserakibapetoforir.pdfIn PDF document text
    • https://serrechevalier-skifun.com/imagesfile/wikugibisagowakakozis.pdfIn PDF document text
    • https://igmof.com/admin/js/kcfinder/upload/web_file_ig_1/files/66213764905.pdfIn PDF document text
    • http://mpapir.ekopapir.com/images/files/30968580650.pdfIn PDF document text
    • http://grouptm2.com/contents/files/karuwaxixaxapiju.pdfIn PDF document text
    • http://rosesrealtyhomes.com/userfiles/files/4027561923.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/gezas.pdfIn PDF document text
    • http://vietsaovang.com/uploads/userfiles/file/5847760581.pdfIn PDF document text
    • https://successalpha.team/upload/files/79159753366.pdfIn PDF document text
    • http://orthocarecentroortopedico.it/userfiles/files/runupelevifaxije.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/dokisagudikiwimazubimiraz.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/89241796055.pdfIn PDF document text
    • http://autord.ca/site-uploads/redezifapa.pdfIn PDF document text
    • https://acconpriti.com/ckfinder/userfiles/files/87517802443.pdfIn PDF document text
    • http://prosefkuchare.cz/userfiles/kaxubibifavarisuvuguxado.pdfIn PDF document text
    • https://cfacgroup.com/uploads/FCK_files/file/jorizidob.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=guide+master+yi+mua+9PDF link annotation
    • 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_off00032584.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00032584.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00032584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32584 18604 bytes
SHA-256: e7119e21fb551d12c4c5bd35feb33e1d77a10ea93fe1e17ee47a1dde0d966721
font_01_sfnt_off0003561f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3561F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00036d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D3F 10560 bytes
SHA-256: f9780c0a5488d20021198d3b41fcb4d73cbb8c270b29119bdc1a024457b2d02b