Malicious PDF — malware analysis report

Static analysis result for SHA-256 478d180b5087fbd8…

MALICIOUS

PDF

472.9 KB Created: 2022-02-20 07:20:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: c0b78356cb9a6e307a5228a0285bee39 SHA-1: a4bfd3f5eb01d7b15b19806db26802a46d5b9c10 SHA-256: 478d180b5087fbd8b4f81bdd6cab41dd914dedd335acf07584e5311e399a1f3d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4734

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://fecuq.co.za/XSRYdR1H?utm_term=batman+dark+knight+rises++480p PDF link annotation
    • http://gzwep.com/img/file/202110274462.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/rvimug6u4ahclul56le1iqdn48/titikigozumi.pdfIn PDF document text
    • http://sportingfoundation.com/uploads/file/xetit.pdfIn PDF document text
    • https://mahae.hu/files/files/gurobifikemibeleviloniso.pdfIn PDF document text
    • https://bbcodex.com/kcfinder/upload/files/difojet.pdfIn PDF document text
    • http://sung1.com/upload/files/dujejogizuwumolojuzanamon.pdfIn PDF document text
    • http://xn-----elcksuhhemsi4e.xn--p1ai/files/files/46847743911.pdfIn PDF document text
    • http://etoprosto.ru/ckfinder/userfiles/files/vijebaxuguwa.pdfIn PDF document text
    • http://bloomx.com/sites/all/sites/bloomx.com/files/26260226417.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/rujumakuse.pdfIn PDF document text
    • http://firegallery.ru/img/upload/62679599716.pdfIn PDF document text
    • https://konkrea.be/uploads/files/dalaturomijanivelaxe.pdfIn PDF document text
    • http://satexvernaz.fr/kcfinder/upload/files/57918674256.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1618402b657ef3---1460450294.pdfIn PDF document text
    • https://shirbandifelt.com/userfiles/file/pesuvowujizow.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2021-12-9/20211209140602899085.pdfIn PDF document text
    • http://arunimaflavours.com/userfiles/file/toxigasovuwotolunew.pdfIn PDF document text
    • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/4ed6722a495c5db7034286ff318f8f51/tazirujikir.pdfIn PDF document text
    • https://digireg.at/upload/jenuzugekanakibajobi.pdfIn PDF document text
    • https://nstyapi.com/resimler/files/xuvonanetiriro.pdfIn PDF document text
    • http://domki-kopalino.pl/pliki/44222725256.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/89bfc03cc7143c46034627cd3845f3c8/43161217226.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/vugenipiwudukilediz.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/19252582380.pdfIn PDF document text
    • https://www.domosystem.gr/ckfinder/userfiles/files/lorijet.pdfIn PDF document text
    • http://austria-ex.com/images/blog//file/58443802249.pdfIn PDF document text
    • https://safe-international.com/userfiles/file/56184222976.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/rizefasawiwede.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/besaniwari.pdfIn PDF document text
    • http://heryeryesil.com/resimlerfiles/sesisotu.pdfIn PDF document text
    • https://vadihosting.com/calisma2/files/uploads/12905717770.pdfIn PDF document text
    • http://gesht.ru/admin/ckfinder/userfiles/files/zexuwanabosaxurukorajemiw.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/eaf6e3a9ebcf77b91018fc8ffc2d95ee/46248023002.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0007399a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7399A 16888 bytes
SHA-256: 65ec3de44c6767b8e65203987ef3fdcb051680f0a6e754af9a448a5e13c569ec
font_00_sfnt_off0006d925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D925 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006f040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F040 18248 bytes
SHA-256: f24fcc74812f78d8fbed29c9a796bf6e20475ff7751106bf2ea1e6cf9f18fbcd
font_02_sfnt_off00071fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71FA9 11224 bytes
SHA-256: 74708d3095706e3049992f36c5be7bfd03afec3aa9ba76990983f76c889f3b0b