Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61294f5a1cc154f…

MALICIOUS

PDF

71.9 KB Created: 2022-04-04 15:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 566c56a411d5247f244ffa5fa0ab1830 SHA-1: 3e7bd0bf2952f0a8167da8dd1c13e124f59e181f SHA-256: b61294f5a1cc154fa48bc2dc68c70af93c9098df0669492bce65e53223c1b557
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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 https://faniwavuguvupos.weebly.com/uploads/1/3/4/4/134478403/renobesusipu_rasadevutu_pijerovob.pdf In PDF document text
    • https://volixezutepa.weebly.com/uploads/1/3/4/1/134131916/dusederudapitan-busikufogeji-butotifivo-kudekopi.pdfIn PDF document text
    • https://reviniwixex.weebly.com/uploads/1/3/1/4/131407974/mozemib-vidivo-ridine-wobiberetawi.pdfIn PDF document text
    • http://tratyfa.com/public/ckeditor/kcfinder/upload/files/gadewiduwuvu.pdfIn PDF document text
    • https://givenuwijuzi.weebly.com/uploads/1/3/4/4/134445792/jobirubogukunob_zavofed.pdfIn PDF document text
    • https://revuzigo.weebly.com/uploads/1/3/4/3/134352577/goxivozexukad-taboja-noganonu.pdfIn PDF document text
    • https://sowibize.weebly.com/uploads/1/3/5/3/135348762/3690328.pdfIn PDF document text
    • https://zemedefikejo.weebly.com/uploads/1/3/4/0/134040876/132957.pdfIn PDF document text
    • https://tofoboloronu.weebly.com/uploads/1/3/1/6/131636632/1826236.pdfIn PDF document text
    • https://miwidekufaxojud.weebly.com/uploads/1/3/4/7/134753597/rikake.pdfIn PDF document text
    • http://xedaptap.net/userfiles/file/tejitupajatul.pdfIn PDF document text
    • https://vakakarixo.weebly.com/uploads/1/3/4/5/134590502/8cf59f.pdfIn PDF document text
    • https://nipobajomofak.weebly.com/uploads/1/3/4/6/134641158/0862c2f0d5.pdfIn PDF document text
    • https://ventadeterrenosagricolas.com/userfiles/file/53091700446.pdfIn PDF document text
    • https://fepiwifir.weebly.com/uploads/1/3/4/6/134676425/99912f.pdfIn PDF document text
    • https://egyediajandekotletek.hu/mvc/userfiles/file/subiborir.pdfIn PDF document text
    • https://jumolemema.weebly.com/uploads/1/3/4/8/134853288/nadidifurowupu_vavoxeselaj_tozajonubadeteb_pusav.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=international%20financial%20management%20pdf%20notesPDF link annotation
    • 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_off0000b341.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b341.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB341 16792 bytes
SHA-256: fe7d6a18d818f371e6d6baf14b76e86881e8704958017bff9d51d92108dde712
font_01_sfnt_off0000dee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F8 10916 bytes
SHA-256: 00bb0dad687a73cbcf13408c4448e47884b337b133b05862f3ed9ec92fbdadc7