Malicious PDF — malware analysis report

Static analysis result for SHA-256 425a33e6eea21800…

MALICIOUS

PDF

69.9 KB Created: 2021-10-09 08:35:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 72249ce15ee6e0109fcd51e614c0e7c1 SHA-1: 265236223ceeded819850b527d2d4d4829c4a5fa SHA-256: 425a33e6eea21800032f2bbf53f6353238935ae1f3a6f6f14b40721197e54531
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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 http://ingfrimale.com/userfiles/files/70452307315.pdf In PDF document text
    • http://prttour.ca/FileData/ckfinder/files/20210902_55399ECF67A584E1.pdfIn PDF document text
    • http://ingpiazza.eu/userfiles/files/jafomobade.pdfIn PDF document text
    • http://vet-spb.com/userfiles/file/xegob.pdfIn PDF document text
    • http://ephtour.com/FileData/ckfinder/files/20210903_6839ED51C2F52EF7.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/8822886926.pdfIn PDF document text
    • http://9275522-travel.com/userfiles/file/vagozaxetiguwenoru.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/73482411282.pdfIn PDF document text
    • https://varbackaforskola.se/ckfinder/userfiles/files/navixisi.pdfIn PDF document text
    • https://mycocoa.org/images/upload/files/14553101230.pdfIn PDF document text
    • https://cottonweb.net/userfiles/file/19836229497.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efcf09aeba---48755120381.pdfIn PDF document text
    • https://rafaellopezehijo.com/upload/files/tagofogedis.pdfIn PDF document text
    • http://odesignlab.ru/admin/ckfinder/userfiles/files/dokoniwerewu.pdfIn PDF document text
    • http://vangphutai.com/images/uploads/files/74414111290.pdfIn PDF document text
    • http://papaicountrylodge-longstay.com/user_img/files/wexuretudimijelakod.pdfIn PDF document text
    • https://emenu.hu/editor_up/lezulo.pdfIn PDF document text
    • http://bora.su/ckfinder/userfiles/files/2961795848.pdfIn PDF document text
    • http://warwick-ems.org/userfiles/file/16883361469.pdfIn PDF document text
    • http://margheritango.it/userfiles/file/jidixefu.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/nojolozadagonule.pdfIn PDF document text
    • http://fotografiafrancescosomma.com/userfiles/files/mulelobaforiluxode.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=meaning+of+assured+in+marathiPDF 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_off0000ae41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE41 16992 bytes
SHA-256: 4fb62feb193f2b94c05f70e1b073761e1ceb461b5bd493249b9d360cd71cda49
font_01_sfnt_off0000d982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD982 10848 bytes
SHA-256: 4666ac9f9f11fe357761c9ef129a3930affa00e30577f3542c8ce1ac41949199
font_02_sfnt_off0000f227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF227 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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