Malicious PDF — malware analysis report

Static analysis result for SHA-256 25cbf55080a6a097…

MALICIOUS

PDF

75.5 KB Created: 2022-04-26 04:34:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-01
MD5: 5a9711c8348a4f7eef3f4a82b33df067 SHA-1: 18bc980d6509569c6ee76a22d716a6ce9b6c5cc1 SHA-256: 25cbf55080a6a097a5b0c53cb15b9567982d4d05d0d90b3b11dca592a0b351c8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bandenplaats.nl/cmsimages/file/nakofipaxodarum.pdf In PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16224b8f1be43c---noxopuzevesaxu.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ffe4eedb2d8---muvuxulewap.pdfIn PDF document text
    • https://www.monacruises.com/html/scripts/ckeditor/kcfinder/upload/files/58976494722.pdfIn PDF document text
    • https://joripirido.weebly.com/uploads/1/3/0/7/130776040/7758015.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/fadalix.pdfIn PDF document text
    • https://cncunse.com/d/files/32295322854.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/77930848580.pdfIn PDF document text
    • http://www.mgamk.ru/ckeditor/kcfinder/upload/files/tijojozovesojomozosukipi.pdfIn PDF document text
    • http://slovoveri.org/userfiles/fuzepajepofadodud.pdfIn PDF document text
    • https://lizoranulag.weebly.com/uploads/1/3/4/0/134041515/vopol-namapekedor-dojujun-pizudizosibiva.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/dndld40q0u1f0svlu3a3bbbqu6/zofidijowopafela.pdfIn PDF document text
    • https://semagro-msw.ru/pics/images/file/92583973358.pdfIn PDF document text
    • https://zavitakeji.weebly.com/uploads/1/3/4/9/134904790/fulutizi-zekeluves-guvapid.pdfIn PDF document text
    • https://www.aatae.pt/backoffice/assets/js/kcfinder/upload/files/5651055996.pdfIn PDF document text
    • https://rapodiduwegez.weebly.com/uploads/1/3/5/3/135311990/jupokamabeboso.pdfIn PDF document text
    • http://skorepka15.cz/UserFiles/file/tubupa.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/niweputo.pdfIn PDF document text
    • https://www.twibiotech.com/plugin/ce1/ckfinder/userfiles/files/7206881562.pdfIn PDF document text
    • https://cafij.co.za/YmrXLWy8?keyword=simple%20ajax%20loader%20jqueryPDF 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_off0000c195.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c195.bin)

Related samples 5

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_off0000c195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC195 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AC 10848 bytes
SHA-256: 8a5c178cdf41cd39e01c144066fe5c425cf669c2ffb1a35239ee4a3b92ea4af3
font_02_sfnt_off0000f26f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26F 17592 bytes
SHA-256: 9ba063b977178d327597c1498e90e140b6b5e094e840b6c95c15e2b8b28ba43c

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