Malicious PDF — malware analysis report

Static analysis result for SHA-256 5523883e229587e2…

MALICIOUS

PDF

342.4 KB Created: 2022-02-10 23:20:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: b4f1bbf407ec3cafa393085d32ea72de SHA-1: 452a52a358cc89051f702d8d97899bb67c37738e SHA-256: 5523883e229587e24bfa74d7a38e466421e51bbfe2b3146d12f2bf4934a52641
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://atut-biuro.com/uploaded/file/kizesekonepekupatifix.pdf In PDF document text
    • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1610b932e4525e---9958311330.pdfIn PDF document text
    • http://hzjksj.com/images/upload/File/84533317478.pdfIn PDF document text
    • http://worldnaturalfood.com/image/upload/File/pemewisaluzifoduzifu.pdfIn PDF document text
    • http://ficfart.org/userfiles/file/18260917374.pdfIn PDF document text
    • http://3bbb.fr/ckeditor/upload/files/livuvepebobakusumof.pdfIn PDF document text
    • https://bulendengin.com/upload/ckfinder/files/43948843545.pdfIn PDF document text
    • https://theatresaucinema.fr/uploads/file/87621200957.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/nipek.pdfIn PDF document text
    • http://www.veedik.com/assets/admin/kcfinder/upload/files/jowamusebadivurevex.pdfIn PDF document text
    • http://serextion2006.com/js/upload/files/vutisilumipozujawilufipi.pdfIn PDF document text
    • http://ledseoul.com/userData/board/file/29676217690.pdfIn PDF document text
    • http://eurosolar.cz/res/file/gatepuvazasuso.pdfIn PDF document text
    • http://cravaluos.com/ckfinder/userfiles/files/juzesew.pdfIn PDF document text
    • https://etevent.itweald.com/uploads/files/615d9616b39bd.pdfIn PDF document text
    • https://cli-kh.com/uploads/files/202111210927168254.pdfIn PDF document text
    • https://esvigo.com/upload/files/62088613062.pdfIn PDF document text
    • http://sanjosechakan.com/lib/kcfinder/upload/files/nitunawarupamijizuv.pdfIn PDF document text
    • https://stvorki.ru/files/file/58578106756.pdfIn PDF document text
    • http://namadagaskare.ru/ckfinder/userfiles/files/nokuxukawetowitefub.pdfIn PDF document text
    • http://hophungvietnam.com/app/webroot/uploads/files/75167597516.pdfIn PDF document text
    • http://ipea.kr/userData/board/file/69522063514.pdfIn PDF document text
    • http://halongbaycruises.org/upload/files/xuwimovegi.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20210829000917_ssud4x.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/19756787558.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=3ds+max+character+creation+pdfPDF 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_off0004ed12.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004ed12.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_off0004ed12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED12 11016 bytes
SHA-256: a8fd1440dde1fac3dce724bba974a49b70a085467530237f8baa008cbe85e2db
font_01_sfnt_off00050684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50684 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51D9F 17224 bytes
SHA-256: fed8ee66baec2b0d5bd835699ee5d147aa5ed58af0a494168557bdc14a1c8fb2

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