Malicious PDF — malware analysis report

Static analysis result for SHA-256 445d24744d3bcf3c…

MALICIOUS

PDF

408.3 KB Created: 2022-02-25 13:16:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 57f1ad1ade17f6979f748541a28180db SHA-1: c31fa83a7b51cae62a83383d1cd25f23d3a38b02 SHA-256: 445d24744d3bcf3c1e1a9c5437b7a898d1bceef6a1eca2b214e7c4a01a27dc0a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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.
  • 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://colod.co.za/XSRYdR1H?utm_term=exceptional+c+book+pdf PDF link annotation
    • https://hfbee.tw/upload/ckfinder_temp/files/20211026025514.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/bibusibukesu.pdfIn PDF document text
    • http://sovaimm.it/userfiles/files/xumezokawaxipexoxakofa.pdfIn PDF document text
    • http://traktor-tv.de/sites/default/files/file/gafuvawivoxus.pdfIn PDF document text
    • https://kvkumariajnkvv.org/singhania/downloads/file/45476229867.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202202170159033348.pdfIn PDF document text
    • http://kurpinar.com/img/userfiles/files/59142650064.pdfIn PDF document text
    • http://energyexcess.com/userfiles/file/nuwagagomonelave.pdfIn PDF document text
    • http://lso-msm.fr/userfiles/file/bewug.pdfIn PDF document text
    • http://seattledesis.com/fckeditor/file/1517223145.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161be50d2e2bbe---57243518763.pdfIn PDF document text
    • http://pizzeriadevita.it/userfiles/files/mepafogifawozuzabil.pdfIn PDF document text
    • http://agenziaimmobiliarecannavo.eu/userfiles/files/vuxixitanadudaweri.pdfIn PDF document text
    • http://anvlaw.com/userfiles/file/gagesidesitodexasos.pdfIn PDF document text
    • http://kdbelektrotechniek.nl/uploads/file/fotigu.pdfIn PDF document text
    • http://candientu24h.vn/webroot/img/files/labolivinosinumewo.pdfIn PDF document text
    • https://freebcard.com/ckfinder/userfiles/files/bezevijipuzifozosenodoti.pdfIn PDF document text
    • http://beiwendq.com/data/attachment/file/vawuforopasiradetogajun.pdfIn PDF document text
    • http://conepe.org.br/public/ckeditor/kcfinder/upload/files/64757587335.pdfIn PDF document text
    • http://vdavloeren.be/userfiles/files/75835159021.pdfIn PDF document text
    • http://siltherm.com/ckfinder/userfiles/files/30786858901.pdfIn PDF document text
    • http://kapsalonvogue.nl/files/file/gasomana.pdfIn PDF document text
    • http://www.jw-kids.jp/kcfinder/upload/files/setuvotemawulojafe.pdfIn PDF document text
    • http://coffeexclusive.com/kcfinder/upload/files/38936851171.pdfIn PDF document text
    • https://tecnomatec.cl/upload/file/59125357093.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e70c10e6b20---fotuve.pdfIn PDF document text
    • http://szintai.hu/ckfinder/userfiles/files/namemupuxugibuximitatogaz.pdfIn PDF document text
    • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/539bb3cbde73781f6ade25cb03ef6925/20235866069.pdfIn PDF document text
    • http://kleni.cz/userfiles/file/4371661079.pdfIn PDF document text
    • http://pallenberg-busreisen.de/uploads/files/pituxelemevif.pdfIn PDF document text
    • http://yaeram.com/userData/board/file/juvazuboriku.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_off0005f2a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2A2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000609bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609BD 18384 bytes
SHA-256: 36a9e4953bc30ce8d91f5599f811464615d2267797b2b543135f2cfd6adec025
font_02_sfnt_off000639b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639B3 10660 bytes
SHA-256: c2e4df25b91a2f663d96924670c94b8662bedde22e175775425aaaecb9deb135