Malicious PDF — malware analysis report

Static analysis result for SHA-256 425ba12ecebf9bfa…

MALICIOUS

PDF

75.9 KB Created: 2021-09-06 19:41:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: e237eef33ef21816381eb6b4b26d1fd7 SHA-1: 792f9b1dba2f4071bb66cbef274ea633a6aa611a SHA-256: 425ba12ecebf9bfae2b9c50dbc324f4b982b235ff8efc555c216415ef2eb9886
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/f2960de7cd67c231067a7b42d33b0ed0/82251275800.pdf In PDF document text
    • http://bowenlawmt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89300548651.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160edb497e7069---16793764611.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/8cb741b8c4f9f4b6e82e59786ff5d668/vabibezunawe.pdfIn PDF document text
    • https://haltia.mx/sii/ckfinder/userfiles/files/47768194300.pdfIn PDF document text
    • https://mangonebike.com/uploads/file/puluzizizave.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2add8a9c6c---87897371057.pdfIn PDF document text
    • https://unibel.pl/pliki/upload/file/86743097721.pdfIn PDF document text
    • https://biothiennam.com/media/ftp/file/22025396326.pdfIn PDF document text
    • http://amirafouad.com/uploaded_files/file/47216553.pdfIn PDF document text
    • http://hasyo.net/files/file/9448499347.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3d0848293---77058086531.pdfIn PDF document text
    • http://cloverpark1959.com/clients/51168/File/nujorulirixufalo.pdfIn PDF document text
    • http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lipuxebawefaburipivutirin.pdfIn PDF document text
    • https://terminarz.online/kosmetyczka/krakow/files/numoxelimuxori.pdfIn PDF document text
    • https://fnb-concepts.com/images/uploads/files/vinejujuxumofumo.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/27760155626.pdfIn PDF document text
    • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/21812263558.pdfIn PDF document text
    • https://cuacuonbentre.com/upload/files/kinolaf.pdfIn PDF document text
    • http://pattarasawat.com/ckfinder/userfiles/files/38075420068.pdfIn PDF document text
    • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b0064c6023b---jizulojiletaku.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=screw+jack+assembly+in+catia+pdfPDF 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_off0000c2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000daf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF1 11296 bytes
SHA-256: a24adb2edc86ab7cfb6777c305283e0f93082905df691f6baf98ec6412d7fc80
font_02_sfnt_off0000f54d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54D 17288 bytes
SHA-256: 6a68912740580ecd55e62aad622ec8b63d01a4272fd4aaf34d941bde997b7a02