Malicious PDF — malware analysis report

Static analysis result for SHA-256 9418a88a53846cf6…

MALICIOUS

PDF

72.3 KB Created: 2021-10-14 06:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: fe4d0468366749e19b7bcc03474bfcdb SHA-1: 4f9106f453ce6114a627d427b840fab9c9f386e1 SHA-256: 9418a88a53846cf6e69694e7a0d144deb162865de12cd0641aa72bf5bf52d74e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://estatepie.com/files/userfiles/file/bugogisegibikuguwo.pdf In PDF document text
    • http://chuanghuilaw.com/filespath/files/20210901060753.pdfIn PDF document text
    • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/falawiw.pdfIn PDF document text
    • https://ccaquebec.com/userupload/files/matonewafowokujo.pdfIn PDF document text
    • https://biserica-izvorul-tamaduirii.ro/files/85756652053.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/jiruvidi.pdfIn PDF document text
    • http://topflexsports.com/uploads/veximitu.pdfIn PDF document text
    • http://open.ua/uploads/ckeditor/files/dotosesomikoli.pdfIn PDF document text
    • http://aias.pnu.ac.th/ckfinder/userfiles/files/kinovamug.pdfIn PDF document text
    • https://tekartltd.com/upload/files/mubijasunarotexifujexa.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/refalitarikomaxogipe.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/9fjmag3552o0a4n4qla157buin/55717845821.pdfIn PDF document text
    • https://peintures-descours.fr/fichier/files/kibosebonewuwujotupo.pdfIn PDF document text
    • https://pre-www.bridge-college.com/uploaded/ckeditor/files/xupitategelid.pdfIn PDF document text
    • http://agro-pasz.pl/ckfinder/userfiles/files/wanudubudefasalidu.pdfIn PDF document text
    • http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/16584730253.pdfIn PDF document text
    • https://nazragame.com/calisma2/files/uploads/135683347.pdfIn PDF document text
    • https://bakwanudang.com/contents/files/navagusupude.pdfIn PDF document text
    • http://naoshima-tours.com/images/blog/file/raperigewonites.pdfIn PDF document text
    • http://sportsgarten.com/editorData/file/39168533886.pdfIn PDF document text
    • https://mkycc4.com/kycc4.com/userfiles/files/kozumo.pdfIn PDF document text
    • http://kimura-shihoshoshi.com/userfiles/file/85438041356.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RhDyTiV0TgQ/uplcv?utm_term=for+converting+a+virtual+address+into+physical+address+the+programs+are+divided+intoPDF 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_off0000b874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB874 11216 bytes
SHA-256: 7754713564fb44e39d32d423fa0d129a1eb286ecaff2b36f298ed09f141e9c18
font_01_sfnt_off0000d257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD257 15904 bytes
SHA-256: 22c0e976b5fb29965e46d7e23ab7b5e45a6f68df6793e8a1dc3861b1657c471c
font_02_sfnt_off0000fb0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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