Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e331e6c91bc1246…

MALICIOUS

PDF

102.9 KB Created: 2022-04-01 13:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: bfa00dbc428d3bd8a2f413d255a20b16 SHA-1: d25a109ff3af2f27001e8f8405ebcaeca0678193 SHA-256: 4e331e6c91bc12465de2819460af80338c63505b3f41bf9a8e68a2f00e384f1a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://lazav.co.za/YmrXLWy8?keyword=neil%20degrasse%20tyson%20famous%20speech PDF link annotation
    • https://xitipirobopu.weebly.com/uploads/1/3/0/8/130813988/e98543a0.pdfIn PDF document text
    • https://hygienika.sk/userfiles/file/zasugutaj.pdfIn PDF document text
    • https://gekubuneka.weebly.com/uploads/1/3/4/0/134041200/madonuda.pdfIn PDF document text
    • https://xulakuvoloja.weebly.com/uploads/1/3/0/8/130813987/mefipageburarozigoj.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/32695233836.pdfIn PDF document text
    • https://fuxomuvepanagal.weebly.com/uploads/1/3/4/6/134611725/d5b7a8361ef29.pdfIn PDF document text
    • https://hoavily.com/uploads/files/loverefesit.pdfIn PDF document text
    • https://zzwgjx.com/d/files/14558082992.pdfIn PDF document text
    • https://bevazemirif.weebly.com/uploads/1/3/4/8/134873662/kumewonajaxeze_wezudu_towep_tixem.pdfIn PDF document text
    • https://suwitasejamuk.weebly.com/uploads/1/3/1/8/131856391/4351992.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/virekizezopejub.pdfIn PDF document text
    • https://miletotafog.weebly.com/uploads/1/3/4/7/134758503/jinesugunuvabo-lajewode-xavutujaxutazi.pdfIn PDF document text
    • https://doparobisupof.weebly.com/uploads/1/3/5/3/135329684/tetubeliwavipe.pdfIn PDF document text
    • https://inoxquochoang.com/app/webroot/files/images/pages/files/pozowutu.pdfIn PDF document text
    • https://vavuvulo.weebly.com/uploads/1/3/2/8/132814906/redusugedakexolikob.pdfIn PDF document text
    • https://gukufevekexuse.weebly.com/uploads/1/3/5/3/135305262/8865005.pdfIn PDF document text
    • https://busudege.weebly.com/uploads/1/3/4/3/134392642/muxisosumixejuzi.pdfIn PDF document text
    • https://gefelamanak.weebly.com/uploads/1/3/4/3/134353999/xewupowed_sekotedabewep.pdfIn PDF document text
    • https://waxipirugetaweg.weebly.com/uploads/1/3/7/5/137508402/momeronapos.pdfIn PDF document text
    • https://sasasukaga.weebly.com/uploads/1/3/4/6/134624721/bemolatigukarup.pdfIn PDF document text
    • https://vanonages.weebly.com/uploads/1/3/6/0/136083008/zorarokapidiv_towapujobeguzoj_mawuf_tuxugodoguke.pdfIn PDF document text
    • https://nezafilajulimef.weebly.com/uploads/1/3/4/4/134481311/d59d36363e.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/fajalenaw.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 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_off000126f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013f06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F06 20776 bytes
SHA-256: 9675aafd1eced4592d1dd5011a85662ac98ddf012ff3cb564bff24dbb74cc72b
font_02_sfnt_off0001732e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1732E 11256 bytes
SHA-256: bc185d187a4508d0ffc93b144b5e1890c07f49d0190ebdd64d8a0902048979a1

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