Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f8d297a34b5cc77…

MALICIOUS

PDF

433.8 KB Created: 2022-04-26 15:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 8f7ee4333b78e67fed7a4f37629ec6f6 SHA-1: ff7329750389cfa64ccaa0ac217e15a84e73c087 SHA-256: 4f8d297a34b5cc770083cedfb64e9bd2756bf2ee306bcedd56deb035fac82ed3
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4768

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://iwakuniyumiya.com/js/kcfinder/upload/files/54091522933.pdf In PDF document text
    • https://ubk-sad.de/azubi/userfiles/files/36977212742.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/tufedorobe.pdfIn PDF document text
    • https://sino-islam.com/upload/file/191148157302.pdfIn PDF document text
    • https://caviar.md/kcfinder/upload/files/90213691832.pdfIn PDF document text
    • http://bbmeti.it/userfiles/files/leleruvimivijoremarun.pdfIn PDF document text
    • https://vafopizinenited.weebly.com/uploads/1/3/4/4/134480139/minirube.pdfIn PDF document text
    • http://yigang-lin.com/uploads/files/202204211247565638.pdfIn PDF document text
    • https://taxajefikudo.weebly.com/uploads/1/3/4/7/134765143/6385164.pdfIn PDF document text
    • https://zd-zeta.com/uploads/files/202203271856591376.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/78077923698.pdfIn PDF document text
    • http://xn--45-1lchpa.xn--p1ai/files/files/foginadorozesajesov.pdfIn PDF document text
    • https://greenbins.ca/ckfinder/userfiles/files/gaxofojofi.pdfIn PDF document text
    • http://mientaytourist.com/uploads/files/rimimujafe.pdfIn PDF document text
    • http://xn--80aaaghhaztbcd1agjgbccsgfftf.xn--p1ai/pict/file/39295979655.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/fiwadisibivixavuxuwe.pdfIn PDF document text
    • http://wefi.cz/data/pic/files/21668006045.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e54bef21d0---53250129418.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/34646427993.pdfIn PDF document text
    • http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/10096430054.pdfIn PDF document text
    • https://chilepools.com/contents/files/mobewabevela.pdfIn PDF document text
    • http://sure2trips.com/bot/ckfinder/uf/files/zolotiwox.pdfIn PDF document text
    • http://allnatureint.com/userfiles/file/63758618217.pdfIn PDF document text
    • http://aceonlinementors.com/userfiles/file/jikodijogokojarago.pdfIn PDF document text
    • https://fexiganariv.weebly.com/uploads/1/3/0/7/130739648/gukusis-sanofumo.pdfIn PDF document text
    • https://mtdind.aicsmindia.org/ckfinder/userfiles/files/zozunokenoxuzutukol.pdfIn PDF document text
    • https://anglarill.net/userfiles/file/boxunabiz.pdfIn PDF document text
    • http://groupementpecheduloir.com/ckfinder/userfiles/files/woriribopon.pdfIn PDF document text
    • http://ovodaprojekt.lenti.hu/feltoltes/files/lixuvasazunoleb.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/76998561746.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/vujixuram.pdfIn PDF document text
    • https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/22357490514.pdfIn PDF document text
    • http://centrodebridge.pt/ckeditor/kcfinder/upload/files/xagaratisusu.pdfIn PDF document text
    • http://tulga.ru/editor/files/mufofogepifuzumox.pdfIn PDF document text
    • https://gerbangkuis.com/contents/files/61695321216.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=chords+for+nigerian+worship+songs+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_off0006535f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006535f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006535f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6535F 19520 bytes
SHA-256: 88283ffed316fb2861b9ddd712295068e2c4d4345a4611375c26926568f34912
font_01_sfnt_off00068669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68669 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00069e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E80 10752 bytes
SHA-256: 091cb900d9ad822ddcfff6671cf20a752ca05449ed191676f9d04ba7dfe81748