Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e361a65a274efd5…

MALICIOUS

PDF

124.0 KB Created: 2021-12-05 06:14:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: bc6fa4655530b3a6d756a1a7eec9565e SHA-1: 7071b7634a3806ebe34302373485f3f2df004a2b SHA-256: 4e361a65a274efd5149bf1ae677b28f536734eec268672d11358506ac7ac0fcb
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 https://chcial.ru/uplcv?utm_term=conceptual+physics+chapter+30+answers PDF link annotation
    • https://sassanoproperties.com/FCKeditor/file/fefawagetewapila.pdfIn PDF document text
    • http://kehlux.lu/userfiles/files/dunut.pdfIn PDF document text
    • https://congnghiepxd204.vn/upload/files/paroxexa.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1616d6707174f7---pupesas.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16197f2875144a---77967004748.pdfIn PDF document text
    • http://avemkz.internet-match.com/upload/files/dinitafenur.pdfIn PDF document text
    • http://elektromig.pl/userfiles/file/31328502047.pdfIn PDF document text
    • https://27061010.com/uploads/files/202109180354526130.pdfIn PDF document text
    • http://kenshopvn.com/uploads/files/54404918496.pdfIn PDF document text
    • https://cansandientu.net/Images_upload/files/56912226071.pdfIn PDF document text
    • https://alsharqcc.com/userfiles/files/95806329694.pdfIn PDF document text
    • https://fratellifurloni.it/file/jomixixipafubunijuribalu.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/selojazifajo.pdfIn PDF document text
    • http://movietek.vn/hinh-anh/files/3531294629.pdfIn PDF document text
    • https://crossfitbeeshark.ro/app/webroot/files/userfiles/files/rijibasuru.pdfIn PDF document text
    • https://clic-essc.ch/ck/ckfinder/userfiles/files/manidoxovaw.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_off00018575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18575 11096 bytes
SHA-256: 941be711e42a6e7390427d7a5500780970397f7cca9adabe8cae460941c4471d
font_01_sfnt_off00019f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F62 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0001b601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B601 16860 bytes
SHA-256: 9f52163cb6fcf142c1abb21060c33855c0e231d8eec25e2abc11dc4a33e0b24a

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