Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a825842cc02c61…

MALICIOUS

PDF

94.7 KB Created: 2022-04-06 02:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 4374cfeda9813b46fd9a12f703848048 SHA-1: 5c5ceedf2fa37ec6a32f37b3e45a31993eb2f1fd SHA-256: 18a825842cc02c613eb2a1b137d69814f2b2ad643fd3ca2a99483e11f2d43e64
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9934

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kepevexin.weebly.com/uploads/1/3/4/2/134234606/20418b0190152.pdf In PDF document text
    • http://lingotranssgg.lingotrans.com/fck/file/58536724978.pdfIn PDF document text
    • http://nage-z.com/ckfinder/userfiles/files/norurirevo.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/4b141023cfedf8902db37d760bfb3708/8774613056.pdfIn PDF document text
    • http://xn--80adib9cjd8a5e.xn--p1ai/i/upload/files/zakowarutogenetixu.pdfIn PDF document text
    • https://radiofarsasch.online/upload/files/rosijofu.pdfIn PDF document text
    • http://www.andreapondika.cz/file/penokazi.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1623563901c803---39595146797.pdfIn PDF document text
    • http://w-f-l.de/user_img/file/46380686629.pdfIn PDF document text
    • https://rubfila.in/files/file/1446146048.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202203102055583695.pdfIn PDF document text
    • https://ice-group.pl/userfiles/file/rapewegolusaz.pdfIn PDF document text
    • http://colorfusion.us/admin/images/file/34854207438.pdfIn PDF document text
    • http://thebrownbag.vn/upload/files/73982957967.pdfIn PDF document text
    • http://merten-antik.su/kcfinder/upload/files/13577515516.pdfIn PDF document text
    • http://kapfenberger-schuetzenverein.at/userfiles/file/29080251189.pdfIn PDF document text
    • http://vdi.vn/userfiles/file/20827845994.pdfIn PDF document text
    • https://pulezigo.weebly.com/uploads/1/3/4/6/134600697/b4b799e.pdfIn PDF document text
    • https://4cmedica.com/ficheiros_upload/file/97096246437.pdfIn PDF document text
    • https://www.monacruises.com/html/scripts/ckeditor/kcfinder/upload/files/4018869630.pdfIn PDF document text
    • https://g-tet.com/uploadedfiles/file/70464659445.pdfIn PDF document text
    • https://marlschuz.com/userfiles/files/feludedizevirenasap.pdfIn PDF document text
    • https://joinvita.com/neu/userfiles/file/24726791700.pdfIn PDF document text
    • https://podar.co.za/YmrXLWy8?keyword=final%20fantasy%20tactics%20advance%20ability%20guidePDF 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_off0000fa3d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000fa3d.bin)

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3D 10828 bytes
SHA-256: 660e4f0c54668ffef21abd86e1bdea7acfc3ce3357aa45328cc8ad3d5f03dd54
font_01_sfnt_off0001132e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1132E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012b40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B40 17720 bytes
SHA-256: 042b052415d364487fc1f4d294823fb86b0f75847d2da4ab539b31aeb11836b4
font_03_sfnt_off000159b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159B6 4984 bytes
SHA-256: 4dfd7dba1c67bc672b321462afc9bf69614a00565f4f90425158b79e9cb9cee8

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