Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4ff566e626e030a…

MALICIOUS

PDF

80.8 KB Created: 2022-04-24 12:33:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 6343fa1fefe3f7719340a840c657b4ea SHA-1: 6c967c9d00389c6a6081b85d6455c8322291e773 SHA-256: a4ff566e626e030a09cf4efd042976c30b934a8314b1aed07c9c795bc13294f3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lovig.co.za/YmrXLWy8?keyword=how%20to%20connect%20nutone%20doorbell PDF link annotation
    • https://voteriboxovoviv.weebly.com/uploads/1/3/4/3/134352377/nigedoroweraz-jivas-welovev.pdfIn PDF document text
    • http://www.upratujemeinak.sk/admin/ckeditor/kcfinder/upload/files/vewixoluwegogogizidele.pdfIn PDF document text
    • https://jofetafoba.weebly.com/uploads/1/3/4/4/134485710/kinegokevof.pdfIn PDF document text
    • https://sowofodifidem.weebly.com/uploads/1/3/1/8/131856479/dasapo.pdfIn PDF document text
    • http://bukharaalpharetta.com/sites/default/files/file/30209870912.pdfIn PDF document text
    • https://sipitajopidegol.weebly.com/uploads/1/3/1/4/131453448/194443.pdfIn PDF document text
    • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/47984894067.pdfIn PDF document text
    • https://cronos.jptecnicascr.com/yiicms/ckfinder/userfiles/files/segitawiduloladanukovi.pdfIn PDF document text
    • https://bifekanivixu.weebly.com/uploads/1/3/1/4/131408854/zaxopem.pdfIn PDF document text
    • http://dietgame.net/admin/fckeditor/data/file/20220203100043.pdfIn PDF document text
    • https://wilixutisew.weebly.com/uploads/1/3/4/0/134095986/benagurojojotagilolu.pdfIn PDF document text
    • https://sadakufimekimox.weebly.com/uploads/1/3/4/5/134528921/nupexofe.pdfIn PDF document text
    • https://sazizilas.weebly.com/uploads/1/3/0/8/130874530/sojasujisu.pdfIn PDF document text
    • https://rujabeta.weebly.com/uploads/1/3/4/5/134529194/6375077.pdfIn PDF document text
    • https://vulazijol.weebly.com/uploads/1/3/4/6/134648863/lugajidiluvij-tituzev.pdfIn PDF document text
    • https://zufojemesegogof.weebly.com/uploads/1/3/4/7/134753559/saroxu.pdfIn PDF document text
    • https://xikuvisaduwobax.weebly.com/uploads/1/3/5/9/135962120/kugokujivilime.pdfIn PDF document text
    • http://www.bestofasco.cz/upload/files/xekerip.pdfIn PDF document text
    • https://nidupivulef.weebly.com/uploads/1/3/4/0/134042353/3534716.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_off0000d906.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d906.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_off0000d906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD906 10260 bytes
SHA-256: 9067b2a5b2f0a0596072d2720d6ac87b54212f9993614204f8ad89a33987a4f3
font_01_sfnt_off0000f030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF030 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10842 16656 bytes
SHA-256: 7d6f6c0743a3dbfe01bb4e0147cd5a2c6354fb099d8d58a1b4c3244486155d76

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