Malicious PDF — malware analysis report

Static analysis result for SHA-256 87559e7086576c04…

MALICIOUS

PDF

80.2 KB Created: 2022-03-31 17:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: e0f036e5b438a0ad3e082ca4826880f1 SHA-1: b2cfb5ed1ff72c30fa4269854c995086102197b1 SHA-256: 87559e7086576c04570b340cabfdb0a0d24e98a9d4f61edca1e119574a4739ba
156 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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://norin.co.za/YmrXLWy8?keyword=can%20a%20pitbull%20kill%20a%20great%20dane PDF link annotation
    • https://muwudunorafa.weebly.com/uploads/1/3/4/5/134512035/regelabexumuwoti.pdfIn PDF document text
    • https://zanegesolejax.weebly.com/uploads/1/3/5/3/135308051/527fd9b4c1cd.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/legenerilijakaso.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1620823f1cdc06---kakaga.pdfIn PDF document text
    • https://dananeye.com/uploads/files/202203260207028481.pdfIn PDF document text
    • https://leboxinadevot.weebly.com/uploads/1/3/4/4/134440814/gamitufuno.pdfIn PDF document text
    • http://delta-serwis.pl/pliki/16173728255.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1620439e582f77---rojexakifiso.pdfIn PDF document text
    • http://vitanova-cattery.com/upload/file/kaxesirikupovuzu.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/18640547142.pdfIn PDF document text
    • http://protok.pro/upload/files/7592626830.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/keguzowa.pdfIn PDF document text
    • http://dermatologomiguelgallego.com/miguel/fck/file/40217458758.pdfIn PDF document text
    • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/xedolapebarunumeta.pdfIn PDF document text
    • http://hnsunnyfood.com/d/files/vegufafiwaxuposul.pdfIn PDF document text
    • http://fisioterapiasuzzara.it/userfiles/files/40834694696.pdfIn PDF document text
    • https://bigsao.com/kcfinder/upload/files/xomulizopetigirawodimobev.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216d9cba4a6a---xuwudego.pdfIn PDF document text
    • https://taiwancy.com/app/webroot/userfiles/files/kowenapidevomano.pdfIn PDF document text
    • http://jandebruijn.com/uploadimages/files/65333823431.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_off0000d47b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d47b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d47b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD47B 10644 bytes
SHA-256: 427314815b96dcfc071c807d15721e23b4fc2143020c84b625fb70b18049d2b1
font_01_sfnt_off0000ec87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC87 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10499 17420 bytes
SHA-256: 93bee948516779f5b694152967f55ca3d09775058db649db6b7545e94ad14269