Malicious PDF — malware analysis report

Static analysis result for SHA-256 f998d11541b8f45e…

MALICIOUS

PDF

79.1 KB Created: 2021-09-16 21:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 1468206c464de42b1ccd34696e4d7842 SHA-1: 3bcc8284bc0efa809cf2157544f01dd19b553ed6 SHA-256: f998d11541b8f45ebd42c535b92ee1d6be9237135f4c76dd3551977e62176bd7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.spitalmoldovanoua.ro/ckfinder/userfiles/files/nadapinuxoxixe.pdf In PDF document text
    • https://galaxy-training.com/userfiles/file/98395157013.pdfIn PDF document text
    • http://dungcucaytrong.com/images/files/mijagum.pdfIn PDF document text
    • https://31app.com/userfiles/file/11815199994.pdfIn PDF document text
    • http://clinicaveterinariailmarzocco.it/userfiles/files/14506921176.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/kaxenepabipogupax.pdfIn PDF document text
    • https://infotechb2blite.com/bot/ckfinder/uf/files/xafakoxadafit.pdfIn PDF document text
    • http://yongchengtech.com/uploads/files/202109080726064185.pdfIn PDF document text
    • http://wamer.org/userfiles/file/23473946442.pdfIn PDF document text
    • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nonimogoxufamomej.pdfIn PDF document text
    • https://redengewinnt.com/userfiles/file/janapapagigemodaxuzor.pdfIn PDF document text
    • http://www.moyekolodin.com/files/boposabowamafugu.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/zuzajezupipudaniko.pdfIn PDF document text
    • http://stefanourso.com/public/userfiles/file/dapifonorusot.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/23197308372.pdfIn PDF document text
    • http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/94739561959.pdfIn PDF document text
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/05a5187f8a7d5df0a37b9ade67910e64/zuvamir.pdfIn PDF document text
    • https://lwim-ouargla.dz/ar/files/53536539321.pdfIn PDF document text
    • https://jackinthegymtpe.com/uploads/files/202109110450223425.pdfIn PDF document text
    • https://nisahanpin.com/calisma2/files/uploads/18857485091.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/69788047932.pdfIn PDF document text
    • http://szentistvanpatika.hu/upload/file/80730004810.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=login+code+for+android+studioPDF 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_off0000d177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD177 17488 bytes
SHA-256: c6e863e98e4444c6bd991c2b32af9efd8aee1e7c77150cbe409d8fd9f7765a62
font_01_sfnt_off0000fead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000116c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C4 10664 bytes
SHA-256: 22dec7c4ca6d65619b38007f08420f957ba3b378db4c329c258b3a337e9c2567

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