Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8376ba660c6537…

MALICIOUS

PDF

86.5 KB Created: 2021-10-12 12:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: b4fe156d5082a6d91177c3ac05922b95 SHA-1: 7cd9bcf33592e7ecbc3a0818a51ed6712039862f SHA-256: 5d8376ba660c653716cd42c90dc64ed198456e82e2dc6c07b6c39504f8fc21af
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://capri.lt/userfiles/files/vovodisavanatikizub.pdf In PDF document text
    • https://strategie-forex.com/ckfinder/userfiles/files/62593193224.pdfIn PDF document text
    • http://gintaras.cz/userfiles/file/67513979887.pdfIn PDF document text
    • http://thaiboxes.com/piceditor/file/darotudoxevemotumitejem.pdfIn PDF document text
    • http://ramenzoni.eu/userfiles/files/58260752967.pdfIn PDF document text
    • https://www.hkha.com.hk/ckfinder/userfiles/files/36173336350.pdfIn PDF document text
    • http://paneldeconso.com/userfiles/file/14581828567.pdfIn PDF document text
    • http://saothienemb.com/uploads/images/files/10761882387.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/30265665890.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/viputidogixararazakugonak.pdfIn PDF document text
    • http://ttccid.com/userfiles/files/depimitidaxatedami.pdfIn PDF document text
    • https://viktorina.ledoritulys.lt/files/zupasuzoferir.pdfIn PDF document text
    • https://axlthailand.com/imagexx/files/xavumosajemikod.pdfIn PDF document text
    • https://ultralloy.net/upload/files/44935443913.pdfIn PDF document text
    • https://pellevah.com/upload/files/tubarifixakijosonor.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/904884133.pdfIn PDF document text
    • https://geloracinta.com/contents/files/34859363528.pdfIn PDF document text
    • http://ibarugi.com/fckeditor/userfiles/file/43929101345.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130206d54c6c---nugiroberasawawopedu.pdfIn PDF document text
    • http://formacio.fic.cat/uploads/file/xevanipejofimodugom.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/KGDyd8lM0uI/uplcv?utm_term=form+5+ibc+word+formatPDF link annotation
    • https://rb.gy/qq7efvIn 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_off0000ecce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCE 18952 bytes
SHA-256: 3b8c0f0a62b2651cb047e3c96a92b07304945c3b69815cc2d7347e0e37dc97ec
font_01_sfnt_off00011cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CBF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000134d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134D6 10524 bytes
SHA-256: 8ad815b46c5ae7c52e182fb1fb60e441ef4443c058a87fd35ca90aeb4c710d75

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