Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ec3fff003051c2…

MALICIOUS

PDF

71.5 KB Created: 2022-03-31 08:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: bd18874c3a8a7c24b534c557e43b7449 SHA-1: d33bdd533db2737ccab4dabf24f7f52fd1a05cd4 SHA-256: b6ec3fff003051c23dc7da7aa3a9be376120ad13652fb15efdb23bc67c3f1f8d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://wirut.co.za/YmrXLWy8?keyword=how%20to%20start%20a%20retail%20business PDF link annotation
    • http://agro-pasz.pl/ckfinder/userfiles/files/47534486637.pdfIn PDF document text
    • https://lesinagin.weebly.com/uploads/1/3/1/4/131454304/retir.pdfIn PDF document text
    • https://lonomunemol.weebly.com/uploads/1/3/6/0/136082408/2d06ab8916.pdfIn PDF document text
    • http://preciz.com/uploads/wysiwyg/files/59014421519.pdfIn PDF document text
    • https://aspirans.com/files/file/liwezaxamuzasixur.pdfIn PDF document text
    • http://anton-joyeros.shopcloud.es/ckfinder/userfiles/files/livawowe.pdfIn PDF document text
    • https://jofilelaritavux.weebly.com/uploads/1/3/4/1/134108607/fotoki_damepakokewo.pdfIn PDF document text
    • https://woxigixekamut.weebly.com/uploads/1/3/0/7/130739530/bigatiniserexew_totepobilesaja_penep.pdfIn PDF document text
    • http://mirsistem.com/depo/sayfaresim/file/98227121145.pdfIn PDF document text
    • http://galerieametyst.cz/media/files/suputexisokopubofoli.pdfIn PDF document text
    • http://ns2.tradingphrases.com/userfiles/files/lonunabefolagosodipaxe.pdfIn PDF document text
    • http://sjar-tech.com/uploadfile/file///2022032905184190.pdfIn PDF document text
    • https://lutolobod.weebly.com/uploads/1/3/4/1/134108863/kirufuxizerevenilaxi.pdfIn PDF document text
    • https://rodokonodak.weebly.com/uploads/1/3/4/7/134730192/2752931.pdfIn PDF document text
    • https://xonugovelixef.weebly.com/uploads/1/3/0/7/130739086/fubijisetefafi-tusezamimevez-tegegikazonosom-pinuxutaboxitox.pdfIn PDF document text
    • http://gulfcoastlist.com/userfiles/file/talukigidulugu.pdfIn PDF document text
    • http://forensique.ch/app/webroot/kcfinder/upload/files/weputesegisip.pdfIn PDF document text
    • https://rigivopamakor.weebly.com/uploads/1/3/4/8/134869382/fixotovajila.pdfIn PDF document text
    • https://fanejutasoja.weebly.com/uploads/1/3/5/3/135399707/5926075.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_off0000b53c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b53c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB53C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000cbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDB 16832 bytes
SHA-256: 8cf9fca8bd119b20551d465dcf6043b4bfdefb83310fc887cea90311f0dc8f1f
font_02_sfnt_off0000f7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BB 10416 bytes
SHA-256: bb4793dbf779e1eefd787080332d7bb652d7083f08e909f21ba87a3925146da1