Malicious PDF — malware analysis report

Static analysis result for SHA-256 25cdb7bae1b73cc0…

MALICIOUS

PDF

82.6 KB Created: 2022-04-12 02:07:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 8d256a61827fe6ee34110657e6b920aa SHA-1: 38142b133a52e1bf9eed8b60ddb29fb9c0cb5da1 SHA-256: 25cdb7bae1b73cc0b0a4771f7eb22cb1ee21a1b18be17f97621093af010c0421
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://roxracing.eu/userfiles/file/vovijavibojolarefaga.pdf In PDF document text
    • https://foxikojowi.weebly.com/uploads/1/3/1/3/131398405/03ccc65e581e8b9.pdfIn PDF document text
    • https://tagenomamoz.weebly.com/uploads/1/3/4/4/134476715/6844367.pdfIn PDF document text
    • https://rukutatonaneto.weebly.com/uploads/1/3/4/0/134012616/migazevojizeleperizu.pdfIn PDF document text
    • https://cailux.lu/userfiles/files/63184690962.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/ba75588c66aab0b100f6a25e363f9d2d/70482168503.pdfIn PDF document text
    • https://fifimijo.weebly.com/uploads/1/3/4/7/134748793/042ef5.pdfIn PDF document text
    • https://tedajurilazunu.weebly.com/uploads/1/3/0/7/130739962/revekuregumotezu.pdfIn PDF document text
    • https://vibofizetukoz.weebly.com/uploads/1/3/0/9/130969748/4411826.pdfIn PDF document text
    • https://gixifufu.weebly.com/uploads/1/3/3/9/133999878/29eb3f61.pdfIn PDF document text
    • https://sazetikegiwujo.weebly.com/uploads/1/3/4/8/134895432/e76d4874b0236.pdfIn PDF document text
    • https://kukiramofup.weebly.com/uploads/1/3/1/4/131413837/9231033.pdfIn PDF document text
    • https://jewelilug.weebly.com/uploads/1/3/4/3/134331877/2a579.pdfIn PDF document text
    • https://gisubaxiza.weebly.com/uploads/1/3/4/3/134351543/6509294.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/49810106559.pdfIn PDF document text
    • http://sjatupornservices.com/file_media/file_image/file/nekorelemime.pdfIn PDF document text
    • https://surevasod.weebly.com/uploads/1/3/1/8/131856145/gamirisewexugitijiki.pdfIn PDF document text
    • http://abdobson-new.simplywebeditor.com/site-uploads/78231354961.pdfIn PDF document text
    • https://fudopelotavag.weebly.com/uploads/1/3/5/3/135325828/f8a47cf81a2a5a5.pdfIn PDF document text
    • https://lovig.co.za/YmrXLWy8?keyword=zadie%20jumpsuit%20pattern%20freePDF link annotation
    • https://pinowutofabu.weebly.com/uploads/1/3/4/7/134763632/1bcc07fdeda76.pdfIn PDF document text
    • https://cevhertemizlik.com/userfiles/files/12483711775.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_off0000ddb9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ddb9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB9 10688 bytes
SHA-256: 75f275781a7e3d52dfdf3395d6059aed176c0af0451003133d6e63836092084a
font_01_sfnt_off0000f62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E3C 17648 bytes
SHA-256: d0439e375c03e1ce5a3d1eb353c41fa04a070716cef9a73ad8ee87f419df7722