Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d88f9d3e1659ad4…

MALICIOUS

PDF

83.8 KB Created: 2021-10-16 09:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 82676eae36546d140ddfe224ae781f24 SHA-1: 9efaf054de6fd63aa52ba7da33560588a71818b4 SHA-256: 5d88f9d3e1659ad4d34ec9ec618dcb751e0b6080d5c712b2e438bf45c1cb76a4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • 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.
  • 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 http://windowsplusllc.com/ckfinder/userfiles/files/pimilodopiduxoxum.pdf In PDF document text
    • http://dakdekkersindex.nl/images/uploads/bobilume.pdfIn PDF document text
    • https://gitteszoneklinik.dk/ckfinder/userfiles/files/kiwinemiwotozodalodevudid.pdfIn PDF document text
    • https://purmoradiatoriai.lt/images/files/5914417019.pdfIn PDF document text
    • http://starma.pl/files/file/zorelevutopaxara.pdfIn PDF document text
    • http://grafichesirio.com/userfiles/files/pizinojobosinegubaxi.pdfIn PDF document text
    • http://minhphucvietnam.com/uploads/userfiles/file/kogil.pdfIn PDF document text
    • https://www.syria-report.com/sites/all/libraries/ckfinder/userfiles/files/55725068824.pdfIn PDF document text
    • http://officia.tn/file/fonuladenub.pdfIn PDF document text
    • https://thebillionbottom.com/business_school/uploads/file/nufinujufoba.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/433a2a7237d5f84b45284eb32c72926d/todavumejexiludeli.pdfIn PDF document text
    • http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/56945113819.pdfIn PDF document text
    • http://ccswcd.com/userfiles/file/gixumewaranotavarajavudu.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/kexavejidobesodusewuj.pdfIn PDF document text
    • http://paradisetourkorea.com/FileData/ckfinder/files/20210904_661938B2FA3FC610.pdfIn PDF document text
    • http://sanyosushiglendora.com/uploads/files/24572280923.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/2f186bf70a8475dd379bfed8c6c2d81d/pixesejolaxawupixevup.pdfIn PDF document text
    • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/13546667318.pdfIn PDF document text
    • http://addisonplaza.abwingsmd.com/uploads/files/pivunuvebekonoj.pdfIn PDF document text
    • http://mastrodibaglio.it/userfiles/files/68821145603.pdfIn PDF document text
    • http://zoscm.zohukum.com/ckfinder/userfiles/files/guxanonasevebowizox.pdfIn PDF document text
    • http://giustizianuova.it/userfiles/file/76522631365.pdfIn PDF document text
    • http://ambvetsanprospero.eu/userfiles/files/lasipu.pdfIn PDF document text
    • http://cabini.it/userfiles/files/zotifalemozulemesex.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=how+long+does+a+mulberry+tree+take+to+growPDF link annotation
    • 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_off0000e2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C9 11020 bytes
SHA-256: 577aa9c30d81e75fc64c190c5a7586068ec0c0e8b41901911647bce2c4bbdbef
font_01_sfnt_off0000fc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001145d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1145D 17368 bytes
SHA-256: cb5ae89b924bb8826401f404459c18b31e2af8dc1bb226509073727041125c62

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