Malicious PDF — malware analysis report

Static analysis result for SHA-256 657f5002dd6aa7ba…

MALICIOUS

PDF

87.1 KB Created: 2021-10-19 00:19:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: a46f633e92bf806cd20045edc27cab56 SHA-1: a4514e2ea827dc4c0ccbfa7b327c18ba2948c781 SHA-256: 657f5002dd6aa7badc0b30d802de71fc64708193522466b9b371cfa3b209d96c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://archism.ru/uplcv?utm_term=2000+most+common+english+words+with+meaning+pdf PDF link annotation
    • https://whitepalacegrill.com/userfiles/20086499578.pdfIn PDF document text
    • https://www.gullyracing.it/admin/ckfinder/userfiles/files/22777935498.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1616de11befb8c---62337305130.pdfIn PDF document text
    • https://kvizek.excore.hu/ckfinder/userfiles/files/pukizan.pdfIn PDF document text
    • http://www.physedu.in/newsite/userfiles/files/79081317361.pdfIn PDF document text
    • http://ivankrivanek.com/userfiles/file/jifopazanexomidedawora.pdfIn PDF document text
    • https://dildendilecevirievi.com/upload/ckfinder/files/pajavopowewut.pdfIn PDF document text
    • https://www.hkfew.org.hk/ckfinder/userfiles/files/91081648244.pdfIn PDF document text
    • http://hardiebase.com/uploads/assets/filefile/nuvom.pdfIn PDF document text
    • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/40209112136.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/lld8k4bvpv23a39tqf6s36fubi/11499871231.pdfIn PDF document text
    • http://lg-palette.com/upload/files/gimikigesoti.pdfIn PDF document text
    • http://funagamex.vn/PhuongNamGroup/userfiles/files/buroweminidanad.pdfIn PDF document text
    • http://ormansagszive.hu/upload/file/sesovuguvadumomorawomajis.pdfIn PDF document text
    • https://emtracing.net/userfiles/file/91579730941.pdfIn PDF document text
    • https://mklaassen.nl/images/file/werebawafoba.pdfIn PDF document text
    • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/tejowomuxunorokoxiwitija.pdfIn PDF document text
    • https://www.algeos.com/js/ckfinder/userfiles/files/79769130497.pdfIn PDF document text
    • http://lex.tj/img/file/41565041360.pdfIn PDF document text
    • http://snieznik.pl/userfiles/file/vofiselaze.pdfIn PDF document text
    • http://krasneclanky.cz/uploads/buzudevarivos.pdfIn PDF document text
    • https://bestrecycledautoparts.net/images_i/file/13441675748.pdfIn PDF document text
    • http://mackyz7automotive.com/js/upload/files/856113781.pdfIn PDF document text
    • https://sitycare.com/FCK-UserFiles/files/lagaxomewakibuvisefami.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 extracted file (font_00_sfnt_off0000ef54.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ef54.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF54 17312 bytes
SHA-256: 61b8e21a7d89b24560527226e57f27a07f239e62c56826674282311d53bb3cb3
font_01_sfnt_off00011bd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BD2 11296 bytes
SHA-256: ca9cb47aa7969c7c97b93a21c8fa2a04d0c390ac6f356596a4c8e48cb4a1be24
font_02_sfnt_off00013605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13605 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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