Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8762d0c6e480c31…

MALICIOUS

PDF

72.4 KB Created: 2021-10-03 01:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: baa84ae3942bbd3609fe17a7a8531f61 SHA-1: 535963a2e0404ab2c84de869d80330ca8ba3f5d7 SHA-256: f8762d0c6e480c31e4162926b892d48ac7e1c8b30ac60fe81126c0c222f80133
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://pnmanagementsolutions.in/uploads/losemowexosofejidesoge.pdf In PDF document text
    • https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/2157525756.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161496e39a797d---8387036202.pdfIn PDF document text
    • http://mauthietkedep.info/upload/files/59851884960.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614ba0e16c395---jilofapagekozezoroxolon.pdfIn PDF document text
    • http://brunagabriele.it/userfiles/files/50564182043.pdfIn PDF document text
    • https://nhuadailoan.vn/upload/userfiles/files/5188459288.pdfIn PDF document text
    • https://ximangcampha.vn/upload/files/pezamarodofof.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/lusupadamebudesiten.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613405542d184---78441781625.pdfIn PDF document text
    • https://afma.pt/site/upload/file/24908576795.pdfIn PDF document text
    • http://grupopiscis.com/upload/files/toporinurafowerikajojelux.pdfIn PDF document text
    • https://behbehaniprojects.com/uploads/files/mopileraxajapukur.pdfIn PDF document text
    • http://corporatiegids.nl/uploads/files/lebutopopizeduwalabelu.pdfIn PDF document text
    • http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/29997527188.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/rtfa9tfi9hn0j67r3nv1k5au7l/64264367755.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/xasozonogipo.pdfIn PDF document text
    • http://duancanhotot.com/upload/files/komerar.pdfIn PDF document text
    • http://sherwoodonionfestival.com/ckfinder/userfiles/files/nuvivuwun.pdfIn PDF document text
    • http://hankyunget.net/userData/board/file/32194197142.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/6bcd5f95fd54611193472ce3189db42d/dejijunuruna.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/91146308139.pdfIn PDF document text
    • http://philipp-haberland.de/images/upload/file/jojogokarivoges.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=berlin+defence+chess+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_off0000b519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB519 10392 bytes
SHA-256: 382d593a1f51790566198c07d32b7de38ad83fc35ed13117e56491851ceeab83
font_01_sfnt_off0000cc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6F 18284 bytes
SHA-256: f1accbb8c3933c3ba160dfbc62d6c1d1c10d6c500a158cd80e28ecef2fa5a5b6
font_02_sfnt_off0000fc50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC50 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1