Malicious PDF — malware analysis report

Static analysis result for SHA-256 425cc3286bb892b0…

MALICIOUS

PDF

83.7 KB Created: 2021-09-09 14:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: a9c47a3d6743e4e90c79efc31bce68c0 SHA-1: 50ea827a24321e84d9375655af71a319684f9587 SHA-256: 425cc3286bb892b05d6c0762c64d52d26b94333c1c12e72b22595b611dbad431
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342c0103983---limowelejoziwutigo.pdf In PDF document text
    • http://webbuilders.com/files/file/92310069934.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202109011812238174.pdfIn PDF document text
    • http://www.northern-japan.com/image/upload/File/lewalarusowawufalubuwaf.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613978053bed8---50496499692.pdfIn PDF document text
    • http://naso10.com/userData/board/file/nisezigagiturovujanited.pdfIn PDF document text
    • http://maciejabramowicz.pl/upload/files/file/rosuzixegar.pdfIn PDF document text
    • http://alfavs.eu/userfiles/file/basopinim.pdfIn PDF document text
    • https://justbuymeds.net/userfiles/file/lukiwen.pdfIn PDF document text
    • http://wangguanhardware.com/userfiles/file/vuziwime.pdfIn PDF document text
    • http://juentai.com/userfiles/files/11118953013.pdfIn PDF document text
    • http://www.mariabeckmann.com/fotos/uploads/files/xeraxuxosurilisapojuxu.pdfIn PDF document text
    • http://leaders-adv.net/userfiles/file/sometimejitidevagipofojaj.pdfIn PDF document text
    • http://cedule-plachty.cz/files/file/66448444047.pdfIn PDF document text
    • http://furniture83.com/upload/files/tivej.pdfIn PDF document text
    • http://peoplefineart.com/assets/202109/files/20210909112554968950.pdfIn PDF document text
    • https://itandem.net/ckfinder/userfiles/files/wemimineluzesu.pdfIn PDF document text
    • http://guoyangmoju.com/userfiles/files/wunadesulirujojifom.pdfIn PDF document text
    • https://idosekotthonaveresegyhaz.hu/files/files/78425353996.pdfIn PDF document text
    • https://bahamianbrewery.com/ckfinder/userfiles/files/56254219884.pdfIn PDF document text
    • http://compow.net/ckfinder/userfiles/files/vefudiviketowofimutove.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=basketball+unblocked+66PDF 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 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_off0000e198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE198 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f9af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AF 10724 bytes
SHA-256: 8231701933525ba24680e0bcba8062e7bf4c0671547b3ea013c5e4f513e60681
font_02_sfnt_off0001128b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1128B 18192 bytes
SHA-256: cad8bb788889922759b37d7b36ac56ad2484aadc48ac606ee1e65f8f3ade8322

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