Malicious PDF — malware analysis report

Static analysis result for SHA-256 445cb78309cd2bf2…

MALICIOUS

PDF

89.5 KB Created: 2022-04-22 13:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 63984ef8a4616c35eaa87950a94a8bde SHA-1: f5eabbb800ee6433f261746fbe3b018383cab292 SHA-256: 445cb78309cd2bf2afe269d05fac0dcca2805f68f752c03363b1fa51c9b2548a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://sunuf.co.za/YmrXLWy8?keyword=massey%20ferguson%20231%20parts%20list PDF link annotation
    • http://raiz.jp/kcfinder/upload/files/latuverobibavaremotatida.pdfIn PDF document text
    • https://sawulazu.weebly.com/uploads/1/3/4/5/134588127/sadus-jebazaliwus-zewami-zuxinedujesa.pdfIn PDF document text
    • https://nipupuxuxive.weebly.com/uploads/1/4/1/4/141449332/985aef875.pdfIn PDF document text
    • http://safetruck.gr/images/file/88319596203.pdfIn PDF document text
    • http://faespi.com.br/kcfinder/upload/files/bazafubomujarev.pdfIn PDF document text
    • http://zaun-produzent.de/userfiles/file/pagujewizugetekiwedoji.pdfIn PDF document text
    • https://wusumojasojufe.weebly.com/uploads/1/3/4/3/134352244/bodejataja.pdfIn PDF document text
    • https://dukupahit.com/contents/files/jafinun.pdfIn PDF document text
    • https://manejatuvida.com/images/file/61767353293.pdfIn PDF document text
    • http://bvfclregistration.etenders.in/app/webroot/js/ckfinder/userfiles/files/darepon.pdfIn PDF document text
    • https://frontivo.ro/userfiles/file/5905302459.pdfIn PDF document text
    • https://kapebuzuzevasa.weebly.com/uploads/1/3/4/5/134587117/0cceaf1a5.pdfIn PDF document text
    • https://coevent.ru/upload/files/36435165671.pdfIn PDF document text
    • http://acsalma.hu/userfiles/files/60904012950.pdfIn PDF document text
    • http://0932018255.kad.tw/kads/ckfinder/userfiles/files/55724314879.pdfIn PDF document text
    • https://likerediweraj.weebly.com/uploads/1/3/4/6/134691167/lubomuv-xixenidalesuv-mupuwakabafel.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16232dadd6dc4a---nitomoliwigekut.pdfIn PDF document text
    • https://nukijevexumi.weebly.com/uploads/1/3/4/7/134714394/6039921.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_off0000f7bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BD 17584 bytes
SHA-256: 2cfef19f7acf4a13713f9c34d7d06b10c6db510ed132252d09ad6b9190e42c9d
font_01_sfnt_off000125da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125DA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DF1 11084 bytes
SHA-256: 308855f1c13bc9a31e5efc39222e7e62ace7443680c0994986ca25776ff3fb83

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