Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d898ca8aa2c29be…

MALICIOUS

PDF

83.9 KB Created: 2021-10-22 21:26:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 10cb880fa51f0d19e6483d0eb801ed3b SHA-1: 2cd9367201033334aa7a27f0adb2f6ffb68709bf SHA-256: 5d898ca8aa2c29be738a3e1c0e4cd4acb5c94dc7eed714a2a5c390a46461c5b5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9833

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 http://vitali-schulz-eiskunstlaufen.de/userfiles/files/75722106914.pdf In PDF document text
    • http://czytamzezrozumieniem.pl/userfiles/file/8577821961.pdfIn PDF document text
    • http://zh-huaxun.com/uploadfiles/files/56558747589.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616cb197c955d---feboreseru.pdfIn PDF document text
    • http://mail-business.ru/uploads/file/4997171301.pdfIn PDF document text
    • https://onlinendttraining.net/files/99839812611.pdfIn PDF document text
    • https://andymullinscommercial.com/home/andy/public_html/ckfinder/userfiles/files/17387635264.pdfIn PDF document text
    • http://saikunghouse.hk/userfiles/83528472879.pdfIn PDF document text
    • http://xecuoihuyhoang.com/uploads/userfiles/file/43761125858.pdfIn PDF document text
    • http://whatcanidoforyou.eu/publish/file/6949634557.pdfIn PDF document text
    • http://feg.vn/uploads/files/vufifine.pdfIn PDF document text
    • http://gloteckr.com/upload/editor/file/togotexenivuwefawu.pdfIn PDF document text
    • http://bbmeti.it/userfiles/files/rekubexanutivar.pdfIn PDF document text
    • http://mothertheresapublicschool.com/userfiles/file/bovuresebisiduferevuxuzof.pdfIn PDF document text
    • https://educhina.mn/editor/files/latonanejapefug.pdfIn PDF document text
    • http://adriennemason.com/assets/files/72261547104.pdfIn PDF document text
    • http://jyotiacademicpress.org/uploads/file/23452556146.pdfIn PDF document text
    • http://agro-pasz.pl/ckfinder/userfiles/files/ledejafapuje.pdfIn PDF document text
    • http://cuathepvangohaiduong.com/images/ckeditor/files/29461970268.pdfIn PDF document text
    • https://binarbaidequipment.com/public_html/userfiles/file/rabitegad.pdfIn PDF document text
    • https://floresdeserrezuela.com/aym_image/files/gumivisadawiberujuja.pdfIn PDF document text
    • https://altaitur.com/ckfinder/userfiles/files/24473050239.pdfIn PDF document text
    • http://airfa.it/userfiles/file/80201771199.pdfIn PDF document text
    • http://hotelamadeustorino.com/userfiles/files/54278676501.pdfIn PDF document text
    • http://kasaitogo.com/uploads/files/52032794295.pdfIn PDF document text
    • http://aranykoronakft.hu/userfiles/file/11552934552.pdfIn PDF document text
    • http://aroma-es.red/yamituki-n/uploads/files/61198956513.pdfIn PDF document text
    • http://ukwoodrecycling.com/userfiles/files/17222633148.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/1hHberoKktI/uplcv?utm_term=winning+the+war+in+your+mind+free+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_off0000de1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f62e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62E 19544 bytes
SHA-256: c9fe329a4fab8b0af61178e271e4cf5764583b00bffa3432c9b2198e18dd63f2
font_02_sfnt_off00012880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12880 11024 bytes
SHA-256: 82f48a64cf4915c78d5b1f6acb37ecd6566ff83dc638bf4239fc76b7a8e2fdf7