Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e392e42a4192bd4…

MALICIOUS

PDF

69.0 KB Created: 2021-10-02 23:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: be8dece4c232963cc7c3750df14ddd25 SHA-1: dd4f72c36db0d00170779f83fe9ab6cf8c39720a SHA-256: 4e392e42a4192bd4511b2c489f5ad8f95336941bf71875b7966f82dd6d2ced85
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://pixomot.ru/uplcv?utm_term=discounted+cash+flow+startup+valuation PDF link annotation
    • https://tcremich.lu/files/files/38147615103.pdfIn PDF document text
    • https://binarbaidtrading.com/public_html/userfiles/file/3578593019.pdfIn PDF document text
    • http://jimsclub.net/new/board/img_tinfo/file/20210905054925.pdfIn PDF document text
    • http://abwmountvernon.com/uploads/files/nefak.pdfIn PDF document text
    • https://aep-tc.com/cache/fck_files/file/votalazakomewovozi.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/930188247.pdfIn PDF document text
    • http://elturo.ru/img/upload/files/mafolevadopa.pdfIn PDF document text
    • http://ellissi.org/userfiles/files/83615287882.pdfIn PDF document text
    • http://elitaliaweb.it/upload/file/75971153854.pdfIn PDF document text
    • http://businessdevelopmentcenter.pl/uploads/userfiles/files/luvigitekakajofodutet.pdfIn PDF document text
    • http://belloverde.net/emailer/file/tofuraso.pdfIn PDF document text
    • http://vyveva.eu/UserFiles/File/javonuxaludobuberexita.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/00d8a6d35d04e08205f13183cfe37033/sadefunajixosokir.pdfIn PDF document text
    • http://app0.linkeo.it/ckfinder/userfiles/files/wekekuwejubari.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16143218ccc8eb---zivozatenabivemudowavino.pdfIn PDF document text
    • https://mn-lawfirm.com/box/userfiles/file/16856398927.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/62112782545.pdfIn PDF document text
    • https://guptajimarriagebureau.com/userfiles/file/17135186550.pdfIn PDF document text
    • http://getdol.com/page_data/file/susokepujo.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/p92a5ev79l0mg26lqi5ncsfjk4/42767192473.pdfIn PDF document text
    • http://rialta.ie/userfiles/files/63182907364.pdfIn PDF document text
    • http://caytrong.vn/Images_upload/files/31276875085.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_off0000ac99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC99 15552 bytes
SHA-256: 4aed6e7e0d0ed540d168f3cc0d4985e4b0ba5348e38bed910b29f8a18a7e40a1
font_01_sfnt_off0000d338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD338 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000eb4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4F 10972 bytes
SHA-256: e54a42c44e12baa91f74678238809cfb3e06e87850ab1282dbb1cf411e7f051b