Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8a3eecda66c12…

MALICIOUS

PDF

69.5 KB Created: 2022-04-04 21:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: bbe0a4ce0969d179faeb6c12b6c2fcf3 SHA-1: 66d7e66102fb6375cea4ac012c362ba83302cd05 SHA-256: a4f8a3eecda66c12a2e42f2ce1b3e368f756431bd23e7ee9bf9363ec5ab0fa31
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://mifuj.co.za/YmrXLWy8?keyword=managing%20information%20technology%207th%20edition%20pdf PDF link annotation
    • https://myparrotfood.com/user_files/files/suvimilod.pdfIn PDF document text
    • http://ydtmuhendislik.com/ckfinder/userfiles/files/vavolusawenuba.pdfIn PDF document text
    • https://www.scmribadeave.pt/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/90431629214.pdfIn PDF document text
    • https://ganakinupep.weebly.com/uploads/1/3/4/5/134599301/4b41513a8c.pdfIn PDF document text
    • http://tsetv.kz/app/webroot/js/kcfinder/upload/files/69329143211.pdfIn PDF document text
    • http://pijntherapie.be/uploads/files/23161077144.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/fufivagadidinawugevo.pdfIn PDF document text
    • https://govopejixaw.weebly.com/uploads/1/3/7/5/137514815/debano-jejos-buverod-lilisowilumaf.pdfIn PDF document text
    • http://mtcongnghiepxanh.com/upload/fckimagesfile/jorifojiwarepedokenikev.pdfIn PDF document text
    • http://rezervacie.ambio.sk/user_files/files/lomelumeb.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/18876277795.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f6526ea3e---47357284447.pdfIn PDF document text
    • http://akafgdsgreawy.pretty-match.com/upload/files/zudelokizitujo.pdfIn PDF document text
    • https://dugufenejoropez.weebly.com/uploads/1/3/0/7/130775504/5639443.pdfIn PDF document text
    • https://zagotewirapi.weebly.com/uploads/1/3/4/6/134610326/renixi.pdfIn PDF document text
    • https://icaiaa21.scrs.in/kcfinder/upload/files/zolezurijinateviredus.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/63396695441.pdfIn PDF document text
    • http://sjatupornservices.com/file_media/file_image/file/76054964642.pdfIn PDF document text
    • http://quiltingacademy.net/fckeditor/userfiles/file/lerokejulosax.pdfIn PDF document text
    • https://votilolezin.weebly.com/uploads/1/3/4/3/134307270/tefasupopir.pdfIn PDF document text
    • http://ceral.pl/ceral/pliki/file/38695331301.pdfIn PDF document text
    • https://esnd2013.bulletins.be/userfiles/file/41048001841.pdfIn PDF document text
    • 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_off0000a75b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a75b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA75B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000bf6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF6D 17156 bytes
SHA-256: 136d675434efa1115b6e1fd9f88fc1ec6d1e90629979ea9c1def43b3baf22a90
font_02_sfnt_off0000ec6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6C 11056 bytes
SHA-256: a65fbc8a7abc8f0b6fbea32a758d316a08472f740f1660cbf52f7e47bc76b0c8