Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af9a2377df05937…

MALICIOUS

PDF

90.0 KB Created: 2022-04-03 09:36:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: b0210ccf76658a517acd27af468a7302 SHA-1: e570714602dbae117d606aecbce886758318d479 SHA-256: 4af9a2377df05937347ec7cceb2914290711012a7c016a8a179d6d9dbd5573d6
186 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 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.
  • 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://sunuf.co.za/YmrXLWy8?keyword=phonics%20pathways%20boosters PDF link annotation
    • http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/gemusirarezidogulotawixu.pdfIn PDF document text
    • https://ferropula.hr/files/bamaju.pdfIn PDF document text
    • https://kobuwudorone.weebly.com/uploads/1/3/4/6/134666959/1c3c11413.pdfIn PDF document text
    • https://folivizowusa.weebly.com/uploads/1/4/1/2/141297504/tupebipamel-wuzoduluwenovo-disuxan.pdfIn PDF document text
    • https://pefemodadiz.weebly.com/uploads/1/3/4/5/134520562/7823793.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/14338536453.pdfIn PDF document text
    • http://glearningsolutions.com/userfiles/files/nusufupisebojel.pdfIn PDF document text
    • https://muwidewosavuli.weebly.com/uploads/1/3/4/4/134435377/figilugo.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/xadowere.pdfIn PDF document text
    • https://jazujuwomukoti.weebly.com/uploads/1/3/4/6/134684961/6750642.pdfIn PDF document text
    • http://cn-biyoute.com/d/files/fixelajisitopijop.pdfIn PDF document text
    • https://repare-ton-smartphone.com/userfiles/file/kejakomazilewabefojizupe.pdfIn PDF document text
    • http://manhtreminhduc.com/webroot/img/files/kupimuruporu.pdfIn PDF document text
    • https://janilunulosuga.weebly.com/uploads/1/3/0/7/130739392/bdac3e61bda8.pdfIn PDF document text
    • https://fozejabaf.weebly.com/uploads/1/3/5/3/135305581/vepikem.pdfIn PDF document text
    • https://guxemufisi.weebly.com/uploads/1/3/2/7/132710659/wudeverevutox-wupapenadew.pdfIn PDF document text
    • https://tenifapinam.weebly.com/uploads/1/3/4/7/134711228/3260685.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/46302036058.pdfIn PDF document text
    • https://lonomunemol.weebly.com/uploads/1/3/6/0/136082408/tarut-nukum-sosusiw.pdfIn PDF document text
    • http://namuvaldymas.lt/userfiles/file/48240944614.pdfIn PDF document text
    • https://fisulujat.weebly.com/uploads/1/3/1/4/131454297/jeniruwadax.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

Related samples 5

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_off0000fa78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA78 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001128a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1128A 17840 bytes
SHA-256: 861c8ee0b0b569150cf3e5b189d03c323bbb175138d4f4b036521848f43e0c42
font_02_sfnt_off00014149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14149 10764 bytes
SHA-256: 8edb091f25fb0a4cf52ef274577582061fe5c0a15ab0a9e5855472f01bea673b

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