Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f81c78aa564dec…

MALICIOUS

PDF

80.5 KB Created: 2022-04-02 09:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: cff6ad9cab70cb5d7e473b1d56116626 SHA-1: 572cd84511b791178a07344ab83459eca363f7aa SHA-256: 98f81c78aa564dec190397ba0e5fbffeff5857c95378e0d606d0ae8d79d87cfa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://zuwifitevekamug.weebly.com/uploads/1/3/3/9/133989089/7454480.pdf In PDF document text
    • https://morimisinasezub.weebly.com/uploads/1/3/1/8/131856414/816a49980d11fbd.pdfIn PDF document text
    • https://shidoremicrosys.com/media/birar.pdfIn PDF document text
    • https://successalpha.team/upload/files/84738243803.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/mizovemitedokefebev.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16217039a3f2a2---kokibosumorur.pdfIn PDF document text
    • https://lepimezuraz.weebly.com/uploads/1/3/4/5/134599896/noteto-pasigubug-vefikip.pdfIn PDF document text
    • https://wasevixafam.weebly.com/uploads/1/4/1/2/141295335/kipibum-jakuxifabomajit.pdfIn PDF document text
    • http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/45188305416.pdfIn PDF document text
    • https://dugorokibo.weebly.com/uploads/1/3/4/6/134651225/velaponarofakiw.pdfIn PDF document text
    • http://malerbetrieb-malanders.de/Webseite/pics/fotos/1/file/32631643399.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bdae0d8d5b---80226807399.pdfIn PDF document text
    • http://hebammenglueck.de/ckfinder/userfiles/files/10130334353.pdfIn PDF document text
    • http://avesta-hmora.boj.se/uploads/userfiles/files/74944280324.pdfIn PDF document text
    • https://milsagliksen.org/upload/ckfinder/files/zevosunumevigaripupex.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/gosawobugipu.pdfIn PDF document text
    • https://fresh-cherries.com/ckfinder/userfiles/files/sorobimosisililatolalow.pdfIn PDF document text
    • http://cwesp.biz/upload/file/8127762944.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/47303227138.pdfIn PDF document text
    • http://archive-2011.humandoc.pl/attachments/file/11922125541.pdfIn PDF document text
    • https://norin.co.za/YmrXLWy8?keyword=the%20missing%20season%202%20episode%201%20watch%20online%20freePDF 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 extracted file (font_00_sfnt_off0000d29c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d29c.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d29c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD29C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eaae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAE 17008 bytes
SHA-256: 1b76ecbb4bd67662b83f78ed9048b4dbfb88dc4f17b3605f20884877810b6a99
font_02_sfnt_off00011709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11709 11288 bytes
SHA-256: 970a9522aabe75485a55038a5434f1f8ee637cc45c8c3cd6af7132f015c028cd

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