Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d88c9cc1480be5a…

MALICIOUS

PDF

367.0 KB Created: 2022-03-05 05:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 48a67f8814a8d390ab49a1f7aa931379 SHA-1: f012ddf7954c23465fd2f2199252997375a29e6c SHA-256: 5d88c9cc1480be5a38648ae6284ea1bbda14e35cf4973b3180ec520e744057c6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8589

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://yubit.co.za/XSRYdR1H?utm_term=tenancy+agreement+form+free++pdf PDF link annotation
    • https://isped.cz/kcfinder/upload/files/34835963132.pdfIn PDF document text
    • http://iabmbikaner.org/public/ckeditor/kcfinder/upload/files/13626937962.pdfIn PDF document text
    • http://bangdientunhk.com/upload/files/bifuvulam.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/11576574783.pdfIn PDF document text
    • https://cqc-material.com/app/webroot/userfiles/files/jotuwukapawifejiwi.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/tajugoti.pdfIn PDF document text
    • http://phuongdonggolf.vn/app/webroot/uploads/files/66065630745.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dbe009d4df---zararipajedonag.pdfIn PDF document text
    • http://podushka.by/files/files/99181324053.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/mitakadifafizi.pdfIn PDF document text
    • http://novichiha.ru/pic/file/fokulise.pdfIn PDF document text
    • http://colegiosantarosa.com/uploads/imagem/file/26059996231.pdfIn PDF document text
    • http://kickstartfintech.com/ckeditor/kcfinder/upload/files/nafirovo.pdfIn PDF document text
    • http://friulanamarmi.it/images/file/91377303893.pdfIn PDF document text
    • http://www.flexformule.nl/kcfinder/upload/files/96552988006.pdfIn PDF document text
    • https://newline-eg.com/userfiles/file/kaxufaw.pdfIn PDF document text
    • http://colorfusion.us/admin/images/file/38716605998.pdfIn PDF document text
    • http://elmakoleji.k12.tr/public/kcfinder/upload/files/jekawozasusirisurem.pdfIn PDF document text
    • http://delfosventures.net/userfiles/files/76489446072.pdfIn PDF document text
    • http://gcoekmr.org/cukashmir/User_Files/imagefile/vigik.pdfIn PDF document text
    • https://xpress2.eu/ckfinder/userfiles/files/vodiganep.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/b7eb748ef0ef19d9386d5c713a54983a/ludagavudemilagoxexu.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_off000550cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x550CF 10736 bytes
SHA-256: 7e668c9839b8152c614bb4ca51da964c7085584ee8473dd4abfa1c3fda76be9f
font_01_sfnt_off0005694d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5694D 17432 bytes
SHA-256: 53bea2635499a6cc15e1f4011fefa2c88f1e1679f2c36f4a2c42dc09783e2b18
font_02_sfnt_off00059693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59693 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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