Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f6a76a28c0aaeb…

MALICIOUS

PDF

85.3 KB Created: 2022-03-25 14:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 3697d1e89b7d4543f580193c7464d1cd SHA-1: 437ca4aeb6e4a3b2247d9f65be54d0ea6865a15e SHA-256: a4f6a76a28c0aaeb40f2f0a342d5bd42dc0dae26f09740b31e7da9ed63476ec1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://yoyep.co.za/YmrXLWy8?keyword=health%20o%20meter%20digital%20scale%20bfm884dq1-60%20manual PDF link annotation
    • https://wikivosunox.weebly.com/uploads/1/3/2/7/132741322/5268930.pdfIn PDF document text
    • https://fofevupug.weebly.com/uploads/1/3/4/4/134490210/kajaremuvexu.pdfIn PDF document text
    • https://jimedugevebuz.weebly.com/uploads/1/3/4/4/134437071/fijelapid.pdfIn PDF document text
    • https://xuxijewurinawux.weebly.com/uploads/1/3/4/6/134699439/jufusilotabuzun_monatizexe_nimewujaxosu_totup.pdfIn PDF document text
    • https://busedulaxuxelo.weebly.com/uploads/1/3/1/3/131379622/4806836.pdfIn PDF document text
    • https://wazivako.weebly.com/uploads/1/3/0/9/130969042/1956222.pdfIn PDF document text
    • https://kadiliritit.weebly.com/uploads/1/3/4/8/134864120/rakovubazati.pdfIn PDF document text
    • https://bofejenatex.weebly.com/uploads/1/4/1/2/141221027/faxozawasilozobajema.pdfIn PDF document text
    • https://jipujiro.weebly.com/uploads/1/3/1/0/131069764/ed8d1453.pdfIn PDF document text
    • https://sixebujexe.weebly.com/uploads/1/3/0/7/130740217/muvopexin_gemigamuz_nabojisope_solugibo.pdfIn PDF document text
    • https://vilaferadir.weebly.com/uploads/1/3/4/7/134771168/2390242.pdfIn PDF document text
    • https://vowomupow.weebly.com/uploads/1/3/4/8/134846305/fozevupibu.pdfIn PDF document text
    • https://sedesafatowezu.weebly.com/uploads/1/3/1/4/131437285/2680420.pdfIn PDF document text
    • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/3835124.pdfIn PDF document text
    • https://wawurekufa.weebly.com/uploads/1/3/4/3/134322490/zejegofofubuzu_tikipavatulevub_bawitaruda_pamasoxojozativ.pdfIn PDF document text
    • https://bozemabaseduwem.weebly.com/uploads/1/3/4/8/134880117/4919483.pdfIn PDF document text
    • https://pegofugetil.weebly.com/uploads/1/3/5/3/135347090/53c67b4c.pdfIn PDF document text
    • https://segawerod.weebly.com/uploads/1/3/4/3/134313685/8227313.pdfIn PDF document text
    • https://sewusadata.weebly.com/uploads/1/3/5/4/135401056/1101996.pdfIn PDF document text
    • https://vobokalonumenu.weebly.com/uploads/1/3/4/6/134656332/mikavitaf.pdfIn PDF document text
    • https://tagosijotibaza.weebly.com/uploads/1/3/1/4/131407106/41635928b4d2.pdfIn PDF document text
    • https://renejineb.weebly.com/uploads/1/3/5/3/135322717/vatuvofejar.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_off0000e4bc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e4bc.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_off0000e4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000fb60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB60 11960 bytes
SHA-256: 1ea6235d90ae7dbbc4841cac517648e31789e43546d87f984237053f79029931
font_02_sfnt_off00011771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11771 17784 bytes
SHA-256: 572ab1912a1647a0239ef5b6808903f1d46d134f1768596f696fb36f817e6ff3

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