Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8f703a24a2d889…

MALICIOUS

PDF

76.8 KB Created: 2022-05-04 23:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 6472786621aee14166fa7b292a581e11 SHA-1: 1130bec787d3c285acd7964c97a889a4d854f1ac SHA-256: cb8f703a24a2d8895925646d7afeb92d9145e8d9526334fc9cafca2b80f89c62
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://podar.co.za/YmrXLWy8?keyword=stanford%20acceptance%20letter%202022%20pdf%20format%20online%20word PDF link annotation
    • https://wugovokida.weebly.com/uploads/1/3/4/3/134319073/getekakabebixo.pdfIn PDF document text
    • http://lnhaihui.com/userfiles/file/20220303205853_440224955.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/nidefafiwibena.pdfIn PDF document text
    • https://tifowufiwadoxi.weebly.com/uploads/1/3/4/0/134098290/8378660.pdfIn PDF document text
    • http://www.rbn.org.np/public/admin/plugin/kcfinder/upload/files/5684568430.pdfIn PDF document text
    • http://laclonghotel.vn/upload/files/fimufif.pdfIn PDF document text
    • https://sipelebe.weebly.com/uploads/1/3/4/3/134312525/xatuvefupiko.pdfIn PDF document text
    • https://milixugaxezo.weebly.com/uploads/1/3/1/8/131856079/9287914.pdfIn PDF document text
    • https://wafulerafi.weebly.com/uploads/1/3/4/5/134503758/6238232.pdfIn PDF document text
    • http://incomingmakedonia.com/files/files/mebikudewudojepumomif.pdfIn PDF document text
    • https://sisuwupuwadigif.weebly.com/uploads/1/3/1/4/131437471/dokeresukid.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/rozunefutunigotu.pdfIn PDF document text
    • https://998.geektic.com/geektic/files/4984709587.pdfIn PDF document text
    • https://nefositasin.weebly.com/uploads/1/3/4/3/134310380/1154279.pdfIn PDF document text
    • https://newsflash.asoex.cl/userfiles/file/viwisigewafobonamirofo.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/dozodos.pdfIn PDF document text
    • http://federicozucchettiarchitetto.eu/userfiles/files/kateni.pdfIn PDF document text
    • https://die-elke.de/cms/elke_page_files/file/34486031092.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d9f6e89dd6---miruf.pdfIn PDF document text
    • http://forepic.com/_UploadFile/Images/file/74615236297.pdfIn PDF document text
    • https://sewimoranekodov.weebly.com/uploads/1/3/0/9/130969375/bevazu_guturivivoxok_nukiwof_gukegavafeva.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_off0000c6b8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c6b8.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000deca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECA 16704 bytes
SHA-256: 31a80ef15a519ac067ccbf07d52cfc84c1bbf8b1e869b62d175d73211b06ab6f
font_02_sfnt_off00010a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A85 11016 bytes
SHA-256: 432e5fcfdc9283090deea06af363729aeafc41dce83185e2d0195040eed92788

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