Malicious PDF — malware analysis report

Static analysis result for SHA-256 4780a2b7e892b5a5…

MALICIOUS

PDF

744.9 KB Created: 2022-01-26 23:21:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 615401930c516448114b09abbba50ee2 SHA-1: 172a0634aa31b1deb7031c7c6395298ffe78b77b SHA-256: 4780a2b7e892b5a512de5df7d144d1f4d1e3c6d85f774c12cc6898b4381f0f2d
114 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2953

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.
  • 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://podar.co.za/XSRYdR1H?utm_term=amazon+audio+books+app+for+android PDF link annotation
    • http://uniradioweb.info/userfiles/file/nopolasibad.pdfIn PDF document text
    • https://kapokcmassage.com/uploads/files/202201071717489063.pdfIn PDF document text
    • http://w-mill.jp/images/file/42888865222.pdfIn PDF document text
    • http://olsztyntransportmedyczny.pl/userfiles/file/moxogatuj.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/gafebajovunosowadusibosi.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/lojesipisarulebu.pdfIn PDF document text
    • http://ourdesign.hk/ckfinder/userfiles/files/86725268684.pdfIn PDF document text
    • http://romangruszecki.com/uploaded/file/2166374660.pdfIn PDF document text
    • https://imad0c0.com/js/ckfinder/userfiles/files/42528361234.pdfIn PDF document text
    • http://mijn-nederland.nl/userfiles/file/lomuluru.pdfIn PDF document text
    • http://hyswimpool.com/userfiles/84464791204.pdfIn PDF document text
    • http://pfollowers.com/ci/userfiles/files/gagoritejaxuw.pdfIn PDF document text
    • http://www.avtoschool71.ru/kcfinder/upload/files/folajezoxuxarejuwonovakot.pdfIn PDF document text
    • https://medicentrumnz.eu/medicentrum/files/file/76935041265.pdfIn PDF document text
    • https://steammining.com/userfiles/file/pozosodexozewu.pdfIn PDF document text
    • http://ing-triplee.com/ckeditor/kcfinder/upload/files/kivexiparesubemujuze.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/mozutipekovasejuxoves.pdfIn PDF document text
    • http://travelweeklearningcenter.com/app/webroot/upload/files/lidegavebukizerotodi.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/nesejilifurojifogedup.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/161907b63001ed---37906680995.pdfIn PDF document text
    • http://www.smartusb.info/images/library/File/wujivuxitifomititome.pdfIn PDF document text
    • https://citytrafik.nu/images/file/tigal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000b392c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB392C 16636 bytes
SHA-256: 741e6020e4beb512600bab4f84bab090bd1bece7ac132bb278eb0b2ae7aea4fe
font_01_sfnt_off000b6436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6436 10756 bytes
SHA-256: 91dcdb291fcd69b677ca77ac3660ba9436b3f3e1eb3bde36540f970fbb6370dc
font_02_sfnt_off000b7cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7CB7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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