Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3bab590538981b…

MALICIOUS

PDF

509.6 KB Created: 2022-03-06 22:11:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 839700a5cb5bdc0052bc4d1529819e95 SHA-1: 4969278cf3439eef5cea36e940c71fd7db93a008 SHA-256: 5f3bab590538981b88983a4b804c8b49448c508694aa2ba27361329d3387f8ba
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5411

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 https://tevav.co.za/XSRYdR1H?utm_term=beyblade+burst+cartoon PDF link annotation
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/39211921357.pdfIn PDF document text
    • https://konzolstudio.ro/uploaded_files/file/77782913489.pdfIn PDF document text
    • https://webmanagement.exing.ro/images/file/94336295961.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/91836674143.pdfIn PDF document text
    • http://cl-pub.com/files/files/jubimitunotolopuk.pdfIn PDF document text
    • http://csc0731.com/userfiles/file/20220302094709_utvwjw.pdfIn PDF document text
    • http://bioaec.com/userfiles/files/wovuri.pdfIn PDF document text
    • http://baominhlabors.com/upload/files/14247682789.pdfIn PDF document text
    • https://cdmsig.com/ckfinder/userfiles/files/kovoketozifilujevefuvaza.pdfIn PDF document text
    • https://remoteyourstaff.com/calisma2/files/uploads/jeberodoxusuga.pdfIn PDF document text
    • https://petgears.com/app/webroot/files/file/72961004225.pdfIn PDF document text
    • http://hanaelectric.com/userData/board/file/58863524398.pdfIn PDF document text
    • https://www.kossuth-csepel.hu/inc/kcfinder/upload/files/14456182499.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1620ae410d1ca4---60536413719.pdfIn PDF document text
    • http://affichage-comevents.fr/kcfinder/upload/files/sodamulujovobibanopez.pdfIn PDF document text
    • https://cukimentescukraszda.hu/files/files/letowunapoparam.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621851ec6bbb0---64459932764.pdfIn PDF document text
    • https://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/65659616054.pdfIn PDF document text
    • http://www.gastroblanik.cz/upload/files/62258774823.pdfIn PDF document text
    • http://grabnerestriche.at/kufewowawonudifidemigir.pdfIn PDF document text
    • https://kinizsibank.inweb.hu/_user/file/togigoxizop.pdfIn PDF document text
    • http://av72-reklama.ru/userfiles/file/1645916021b365085a84036e9365b.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_off00077599.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00077599.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00077599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77599 24616 bytes
SHA-256: 0ba57475cdd7f0717ceda7487432e0ee218b4b44e5add7cca81d0d723d57ff56
font_01_sfnt_off0007b6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6A1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007cdc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDC1 10680 bytes
SHA-256: ca7580881e42289c64f514bf31f26e4e5748c58f39b3cf40ca8e16d75694731c