Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d50fc378d5fc6e3…

MALICIOUS

PDF

94.5 KB Created: 2022-02-17 22:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: 1964a0c44609a0bf302bcdd0a7b2e003 SHA-1: a0baa7dddc5dc619c80d8c902fdb49b1477ee90e SHA-256: 0d50fc378d5fc6e357b24f34777debcfc3a482b21dafa0d678e3e966b88991e3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9866

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 https://leganordavigliana.it/uploads/file/99167026365.pdf In PDF document text
    • http://industra.sk/userfiles/file/53450011202.pdfIn PDF document text
    • http://mirjetours.com/uploads/vobavunirivuwalevabirejal.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/ifruupepifeh49h74gkts7r2ns/motakakuguwofon.pdfIn PDF document text
    • https://ooo-kenk.ru/userfiles/file/45046378488.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161be784984cd8---64515792497.pdfIn PDF document text
    • http://ciccioinpentola.com/userfiles/files/diruganatilanezugedur.pdfIn PDF document text
    • https://www.comperat-89.fr/ckfinder/userfiles/files/zosonasamonow.pdfIn PDF document text
    • http://hstechno.com/userData/ebizro_board/file/newuke.pdfIn PDF document text
    • http://salonorganica.ru/upload/files/12010746597.pdfIn PDF document text
    • https://wildnaturetravel.com/File/39555224051.pdfIn PDF document text
    • http://achilleferolla.it/userfiles/files/93048759075.pdfIn PDF document text
    • http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/wemizutebebanal.pdfIn PDF document text
    • https://anctools.com/ckfinder/userfiles/files/54311918903.pdfIn PDF document text
    • http://jocoseatee.com/userfiles/files/60533941354.pdfIn PDF document text
    • http://tuderprogettazione.it/userfiles/files/losotigukelipadaruzorej.pdfIn PDF document text
    • https://baoholaodong24.com/userfiles/file/67295755146.pdfIn PDF document text
    • https://chowdhurytourism.com/ckfinder/userfiles/files/70078949153.pdfIn PDF document text
    • http://studiosantomauro.it/userfiles/files/13211011257.pdfIn PDF document text
    • http://goldenpeak.it/userfiles/files/74681256459.pdfIn PDF document text
    • https://cyberbirddog.com/userfiles/files/25578247949.pdfIn PDF document text
    • https://www.coremg.org.br/dinamico/includes/kcfinder/upload/files/73258297734.pdfIn PDF document text
    • http://ottotech.center/userfiles/file/pimogedomegujafebiviva.pdfIn PDF document text
    • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/xupogalafunuwojusipuni.pdfIn PDF document text
    • http://nanopena.cz/upload/file/karibovinajejuxizo.pdfIn PDF document text
    • https://exam10.menapoint.com/app/webroot/upload/files/marosoru.pdfIn PDF document text
    • http://ferramentabelleggia.it/public/file/gorezovutekigiligavujam.pdfIn PDF document text
    • https://ww150007.linebot.net/upfile/files/20211105061341.pdfIn PDF document text
    • https://center-ot-tula.ru/kcfinder/upload/files/xavefekorobejolegasofe.pdfIn PDF document text
    • http://mylodge-naoshima.com/images/blog/file/54444165999.pdfIn PDF document text
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/ed4da5cd816881a4b9150a270757f5dd/zosedavuf.pdfIn PDF document text
    • http://rowsontw.com/shopadmin/upload/files/tepukodafunob.pdfIn PDF document text
    • https://jkmart.net/FCKFiles/File/wopozelikigegidoreworubun.pdfIn PDF document text
    • http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wimilis.pdfIn PDF document text
    • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/87553345983.pdfIn PDF document text
    • http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/77453592022.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=information+about+kalpana+chawla+in+kannadaPDF 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_off000105b1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000105b1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105B1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00011cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD1 10956 bytes
SHA-256: 00661a087730fbd431c27457f5413b00e4f40747d59c821ad0a76cea76e8b74c
font_02_sfnt_off000135ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135CE 20468 bytes
SHA-256: c12731cc4b418107570abcd2d73ad368834cbf10cf4a216f6c9f27475cce2048