Malicious PDF — malware analysis report

Static analysis result for SHA-256 9419de2d59d4eec4…

MALICIOUS

PDF

83.0 KB Created: 2021-10-12 19:11:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 24d5a9e5644ce3661d2d8645fb71e59d SHA-1: 3eb3c07ce2beb718bc9489b90b35099090a5fd66 SHA-256: 9419de2d59d4eec4ff5098e4bc7f8c52738c249d335dd69e52c3900104dab245
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. Heuristics indicate that the PDF acts as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. This suggests the primary goal is to redirect users to malicious sites, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • 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 http://riversedgefm.com/files/file/paxifa.pdf In PDF document text
    • http://autoscuolavalerio.it/userfiles/files/61663675659.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161583a7637470---8664460169.pdfIn PDF document text
    • http://jl-vacuum.com/upload/files/ziledizowujev.pdfIn PDF document text
    • http://quantri.thaisonpalacehotel.com/upload/files/98226986630.pdfIn PDF document text
    • https://resulgame.com/calisma2/files/uploads/geguxa.pdfIn PDF document text
    • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/pufusomekoxegasimokubu.pdfIn PDF document text
    • http://ahrestygz.com/userfiles/files/20210914_090418.pdfIn PDF document text
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d89ad9225d---38281087829.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/f570ceabe704c2cdb7f6075654105890/vitagusavofuwuzij.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/pibesojamadedejomiwugulid.pdfIn PDF document text
    • http://nessie-vinylcare.com/file/tevegosad.pdfIn PDF document text
    • https://cosmopolitanhotel.eu/uploads/wysiwyg/files/54185816091.pdfIn PDF document text
    • http://eotp.info/sites/default/files/fck/file/mixovusunowopaxuzami.pdfIn PDF document text
    • https://questyme.com/userfiles/file/rofumugagapepeximekira.pdfIn PDF document text
    • http://stsmcc.org/www/js/ckfinder/userfiles/files/jenutemas.pdfIn PDF document text
    • https://onderhoudnlgarantie.nl/upload/file/99979506517.pdfIn PDF document text
    • http://www.fonfe.com/uploads/files/lulujofekoje.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/xekefivizaxexixu.pdfIn PDF document text
    • http://home-hj.com/up_photo/file/69984322584.pdfIn PDF document text
    • http://saothienemb.com/uploads/images/files/55151725237.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/s053790u9v9vs9lna0au35kf6a/tetazazepavujezeki.pdfIn PDF document text
    • http://jumpstart.mobi/userfiles/file/43609961748.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161347ec6c3b79---73378537407.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/896FEnmJZlk/uplcv?utm_term=national+read+aloud+dayPDF 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_off0000db70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB70 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF382 19624 bytes
SHA-256: 9cddec61413efecd3fc33cb71f46607cfe3a7fda4e358f5b221b3e275f00611b
font_02_sfnt_off0001272a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1272A 10264 bytes
SHA-256: 1576fe16b240f47ad450f3c7a0eb402d1ac9854134c93358f12757da4b35cc28

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