Malicious PDF — malware analysis report

Static analysis result for SHA-256 9417586c04c861f8…

MALICIOUS

PDF

70.7 KB Created: 2021-09-25 15:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 682df8e0a89d7864adbdbf0855a67b03 SHA-1: 9939793d3c8a82f7fb70ac09b581523980bab44e SHA-256: 9417586c04c861f8c853c52b353e502624aca270e028163f801536e57ff4cd9f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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 https://smidgel.ru/uplcv?utm_term=naruto+storm+4+road+to+boruto+download+apk PDF link annotation
    • https://gopherscopes.com/userfiles/file/46368929331.pdfIn PDF document text
    • https://edouardweil.com/userfiles/file/42408631735.pdfIn PDF document text
    • http://ecoaga.com/documentos/file/lawegerubunapupu.pdfIn PDF document text
    • http://phone-server.com/userfiles/file/32094481103.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/siteguse.pdfIn PDF document text
    • http://www.valaisconsulting.ch/file/demepazovijeluse.pdfIn PDF document text
    • http://ssaisarang.com/ckfinder/userfiles/files/xewiwivusuwamur.pdfIn PDF document text
    • https://indianhairtransplant.com/ckfinder/userfiles/files/wezojalufipa.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-9-21/20210921122600288519.pdfIn PDF document text
    • http://volareinmongolfiera.it/userfiles/files/fofilowiwena.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/0dcd13278dce4b47acbfdc2453457fbd/54437898063.pdfIn PDF document text
    • http://www.vinoplaza.nl/img/upload/files/sufeselutul.pdfIn PDF document text
    • http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81610237293.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/66058600665.pdfIn PDF document text
    • http://coolscape.info/images/files/29779067113.pdfIn PDF document text
    • http://hoangminhphatkorea.com/webroot/img/files/zumefiveriw.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16144f6fcd3964---duxilutezogexudis.pdfIn PDF document text
    • http://horizonpestservices.com/userfile/konesavo.pdfIn PDF document text
    • https://bimstudioinc.com/media/files/duzuvop.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613897b35768a---47726881106.pdfIn PDF document text
    • http://megalabsrl.it/userfiles/files/16732847220.pdfIn PDF document text
    • https://drjou-vc.com/upload/files/fidoporo.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8a316ee0a---giliv.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_off0000b274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB274 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8B 10804 bytes
SHA-256: 7ddbc8ad8f8afb55805f8a76a940e64dd941c278e17e05bafb3ef19a33fba5b5
font_02_sfnt_off0000e351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE351 16284 bytes
SHA-256: 2d5c309490d6c4c7debfade9a3ea87b3ffa6a8ec7fa19705a175355cfeb0b639