Malicious PDF — malware analysis report

Static analysis result for SHA-256 478b85f5b23caa32…

MALICIOUS

PDF

83.8 KB Created: 2021-11-07 17:04:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 86dd92caaef218507f4bd8b59651a3cd SHA-1: 40ce45706665deca3663dfbd011fbbe15b46aded SHA-256: 478b85f5b23caa32ce7bebfc107a6da443a7722fe72f5804c360b47250be3bce
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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 http://web5gstore.com/Files/files/52567187678.pdf In PDF document text
    • http://arredamentoambienti.it/img/file/jutujuwuxikugumetipo.pdfIn PDF document text
    • https://myoffice.acqualive.com/uploads/files/woduwezijaruzob.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150e58a35103---libora.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/kq7mgajmoahpjabke0lm039shg/lazonamavo.pdfIn PDF document text
    • http://gniortho.com/files/Upload/file/rafotisawitipinibija.pdfIn PDF document text
    • https://vnycc.com/userfiles/file/jugejijelodemenivogurozip.pdfIn PDF document text
    • http://boras-sjuharad.boj.se/uploads/userfiles/files/66795501765.pdfIn PDF document text
    • https://igk-lilienthal.de/downloads/58675048161.pdfIn PDF document text
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/86d1da9ee436e6123794d2bef90cc35f/samukifopefati.pdfIn PDF document text
    • https://cv-vezouze.fr/media/file/negenixowix.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/64caf5d5c8896da083182381789c4af9/wijoreja.pdfIn PDF document text
    • https://www.poole.ed.jp/system/ckfinder/userfiles/files/70617143282.pdfIn PDF document text
    • http://2017.letnifestiwal.pl/ckfinder/userfiles/files/zojafudajutupap.pdfIn PDF document text
    • http://er-trans.com/img/produkty/files/wanixasizelajuxeda.pdfIn PDF document text
    • http://yidaig.com/uploadfile/file/20210923151008.pdfIn PDF document text
    • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dupum.pdfIn PDF document text
    • http://www.europesolidaire.eu/userfiles/files/91575332408.pdfIn PDF document text
    • http://gns3.swiz.eu/files/editor/pixorivaborudonuwafex.pdfIn PDF document text
    • http://demkapi.com/resimler/files/32110631167.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=companies+going+public+in+2020PDF 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 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_off0000e08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08B 11032 bytes
SHA-256: 5385d3b74223d4fa430a85dda3fb99a01f6adcfe40c237018227b492351f170f
font_01_sfnt_off0000f9fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FA 18436 bytes
SHA-256: 7710b4a0c5f47b399155dddcc9ff9663795cf3e862d6c7d98182cb5c2f46ac53
font_02_sfnt_off00012a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A72 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef

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