Malicious PDF — malware analysis report

Static analysis result for SHA-256 42528d1383227e65…

MALICIOUS

PDF

79.3 KB Created: 2021-09-23 14:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: cf35f9750117562ff8d216007dc05234 SHA-1: 399dfd6adb8f6377d72e86997675dd24b3826a0d SHA-256: 42528d1383227e6536bf12d58c904971dcaf79826d404defe6e92ccdce5f4370
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://huntic.ru/uplcv?utm_term=21+black+jack+espa%C3%B1ol+latino PDF link annotation
    • http://positiveforce.in/uploads/files/gavuvigewabesagezen.pdfIn PDF document text
    • http://everestlodgelukla.com/userfiles/file/69643876885.pdfIn PDF document text
    • https://suadienlanhhanoi.net/upload/files/zakusalajetarareviwesotib.pdfIn PDF document text
    • https://peiitw.com/Upload/ckeditor/files/91677064878.pdfIn PDF document text
    • https://rybczewice.pl/userfiles/file/65354703968.pdfIn PDF document text
    • https://www.agencesramos.com/ckfinder/userfiles/files/58203530167.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/4oodfqql5nheac2e89avj0e0g6/tibujasajesibirotawuf.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20210922_9175D31AF6846F99.pdfIn PDF document text
    • https://travelsafeway.com/userfiles/file/11778270426.pdfIn PDF document text
    • http://budka39.ru/files/19507152374.pdfIn PDF document text
    • http://pcwenhua.com/uploadimg/file/1630452939957974870.pdfIn PDF document text
    • http://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/dafuwad.pdfIn PDF document text
    • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/6cfa77612f70f95ad03a31d2989d6ba7/katedexajusisoxinili.pdfIn PDF document text
    • https://apra.pl/files/file/kafeko.pdfIn PDF document text
    • https://1877painters.com/FCKeditor/file/19724943061.pdfIn PDF document text
    • http://gernano.eu/gfx/userfiles/files/nakozedojazumumutov.pdfIn PDF document text
    • http://sgyscom.com/upload_fck/file/2021-9-3/20210903152905159697.pdfIn PDF document text
    • http://chengzechem.com/upload/files/xevelerepo.pdfIn PDF document text
    • http://strandedtattoo.info/file/78975880038.pdfIn PDF document text
    • http://inbond-cn.com/userfiles/file/dimoxemenukud.pdfIn PDF document text
    • http://www.stadion-zarya.ru/ckfinder/userfiles/files/64296681609.pdfIn PDF document text
    • https://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/fibumisop.pdfIn PDF document text
    • https://pikhospital.com/ck_uploads/uploads/files/74977571919.pdfIn PDF document text
    • http://www.ruben.pl/ckfinder/userfiles/files/liwuregofumafusiguniwazaf.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_off0000cb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB35 10912 bytes
SHA-256: d6e4f2d1618a24fdf998dc7642d53d01458def9e169fe4a5188bc7c9bef52062
font_01_sfnt_off0000e43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43A 18932 bytes
SHA-256: eddd38e6ba551b1b05e0f9baa3656dd13d271e0aaba6bfeff4ace03fef09b4ff
font_02_sfnt_off0001154c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1154C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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