Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3e259c2f338241…

MALICIOUS

PDF

253.0 KB Created: 2022-02-05 18:36:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c8e52b29dfc8423a392e5749a3381ba1 SHA-1: 4b4a9a2fdc305e2c47ef29c190d8e955d8eb7366 SHA-256: 4e3e259c2f33824178471fd2a83ebb98aa8494c0ae0f02f0c29025875dd6559f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9497

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://yoyep.co.za/XSRYdR1H?utm_term=sintese+e+purifica%C3%A7%C3%A3o+da+acetanilida+pdf PDF link annotation
    • https://for-auto.dispaco.ro/userfiles/file/74505672424.pdfIn PDF document text
    • http://spiregene.com/image/files/20220114_110346.pdfIn PDF document text
    • http://iktoktatas.hu/files/file/34380662771.pdfIn PDF document text
    • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/71459092506.pdfIn PDF document text
    • http://mqskin.com/luutru/files/88734696481.pdfIn PDF document text
    • http://miraesusan.com/ckupload/files/99380976628.pdfIn PDF document text
    • https://al-wesam.com/userfiles/files/tunuxitokilomegixoki.pdfIn PDF document text
    • http://brothersconsultingllc.com/kcfinder/upload/files/fufof.pdfIn PDF document text
    • http://computergramm.com/userfiles/file/gabazalevaperexinis.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/rowejazugodemezi.pdfIn PDF document text
    • http://sfinance.mn/userfiles/files/88889324383.pdfIn PDF document text
    • https://doellefjelde-mussemarked.dk/images/newsmail/file/zejozinebavula.pdfIn PDF document text
    • http://dayou.tw/uploadpic/files/202112262000309501.pdfIn PDF document text
    • http://integrotech.com/zdjecia/file/63068079576.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161dfba2c64654---62497641505.pdfIn PDF document text
    • https://alev.az/userfiles/file/xudakifefoxalelabuzopi.pdfIn PDF document text
    • http://lactopad.com/uploads/files/futovumatedigujigovemek.pdfIn PDF document text
    • http://www.tecnobor.com/ckfinder/userfiles/files/2984245931.pdfIn PDF document text
    • https://halead.com/uploadfile/1634109509.pdfIn PDF document text
    • http://air-ned.com/uploads/files/80533224087.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/dokuman.pdfIn PDF document text
    • http://atel-j.nl/uploads/files/14302922998.pdfIn PDF document text
    • https://lensmam.com/userfiles/file/71867015934.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 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_off000382e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x382E7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00039a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39A07 11252 bytes
SHA-256: 1aabdab96ba391c7326c2063243c6c0992383365ed3986b79f167c08f02212e0
font_02_sfnt_off0003b3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B3C1 19520 bytes
SHA-256: 5774e78ff505cac594d1f013839e256d66262a9b2d1c4f5a20469389fcf3d4fe

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