Malicious PDF — malware analysis report

Static analysis result for SHA-256 af233aeb2928831e…

MALICIOUS

PDF

79.0 KB Created: 2022-04-03 00:10:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 178acf57365470388cf2b282e7841053 SHA-1: c0410d392bf8832010294dfa3c7d8397ae607901 SHA-256: af233aeb2928831e74bcd6afd8b0ba3720df2681ce44c915f93d4dbb18721ffa
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://colod.co.za/YmrXLWy8?keyword=premiere%20pro%20effects%20free%20download%20for%20windows PDF link annotation
    • https://wimavikuwoj.weebly.com/uploads/1/3/4/6/134698125/ledutaf-fuvuvumexanosir-lekesuvux-kemujope.pdfIn PDF document text
    • https://bakemelufipunuj.weebly.com/uploads/1/3/4/8/134888112/b4034e.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/30515175838.pdfIn PDF document text
    • http://romanasulcikova.cz/userfiles/mebiwazepaloda.pdfIn PDF document text
    • https://jopokiwajisi.weebly.com/uploads/1/3/4/1/134108554/60bc27a74.pdfIn PDF document text
    • https://zudupati.weebly.com/uploads/1/3/1/8/131856533/pafivuseta.pdfIn PDF document text
    • https://vaitinhdien.com/app/webroot/upload/files/difediwezorakizosevedod.pdfIn PDF document text
    • https://fr.unecol.com/uploads/kcfinder/upload/files/18465899376.pdfIn PDF document text
    • https://xovirekines.weebly.com/uploads/1/3/4/6/134648888/nibogodinidavozawule.pdfIn PDF document text
    • http://www.jssmiec.com/themes/js/kcfinder/upload/files/fadupejez.pdfIn PDF document text
    • https://ruxoworajesuz.weebly.com/uploads/1/3/4/3/134387888/tirutulelune.pdfIn PDF document text
    • https://zuramuvo.weebly.com/uploads/1/3/4/4/134480672/436849.pdfIn PDF document text
    • https://gitexerepasali.weebly.com/uploads/1/3/4/5/134577484/togegura-safabifusozusu-litove-zuwipuvigab.pdfIn PDF document text
    • http://online-editor.menu-card-maker.com/uploads/files/zulijekubozazimonubuwoz.pdfIn PDF document text
    • https://moxusovilala.weebly.com/uploads/1/3/0/7/130738705/bbf82ffe34.pdfIn PDF document text
    • https://lanjutpt1.com/contents/files/55494363420.pdfIn PDF document text
    • https://vefoduwuwi.weebly.com/uploads/1/3/4/9/134902927/gefukede.pdfIn PDF document text
    • https://lamivorimu.weebly.com/uploads/1/3/5/3/135330715/fbbf5929569c909.pdfIn PDF document text
    • https://xn--80aujdnb8a.xn--p1ai/kcfinder/upload/files/bazoxesogajujisid.pdfIn PDF document text
    • https://mobajexiv.weebly.com/uploads/1/3/4/4/134455683/xuvipuli_bujorewekowe.pdfIn PDF document text
    • https://www.fukuyama-ramen.com/editors/kcfinder/upload/files/75114954187.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16205293bc0638---30840082972.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 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_off0000cfba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBA 17336 bytes
SHA-256: 1013034e960326071df945bbc2bc1bad9b5b8889aacc643cea19b2e5e22a7ebb
font_01_sfnt_off0000fcc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000114dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114DC 10868 bytes
SHA-256: 15329bc7c1fa6e8b49c2077cd212d9b4fe31ce6276ca8f5df79e8a68af5e3666

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