Malicious PDF — malware analysis report

Static analysis result for SHA-256 25830420ca6dd566…

MALICIOUS

PDF

325.5 KB Created: 2022-04-11 00:42:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 1dba17c5294d16e35d8e79612675c44d SHA-1: a9f79cbf63b9993121edcd13d4d2e7d3e44270e8 SHA-256: 25830420ca6dd56603c6c26edc20d2eac8a6f13a93829418d4e97eecbe663651
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7811

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://mebel-moscow.com/content/xuploadimages/file/90873673392.pdf In PDF document text
    • http://voltgroup.com.ua/assets/kcfinder/upload/files/buniginuna.pdfIn PDF document text
    • http://lollanaclinic.com/image/upload/File/41372388079.pdfIn PDF document text
    • http://furasskutat.hu/admin/kcfinder/upload/files/nadufotokafuwesemikexiri.pdfIn PDF document text
    • https://seborokib.weebly.com/uploads/1/3/4/0/134096410/xasekinuxa-tibasowotoxodur-xunifavegekewe.pdfIn PDF document text
    • https://bifukumuvu.weebly.com/uploads/1/3/5/3/135347201/pavakimiwiwonotuf.pdfIn PDF document text
    • https://rivadosogub.weebly.com/uploads/1/3/4/8/134880553/dodiwazojivira-nagulujolukuvad-vokibixebi.pdfIn PDF document text
    • https://bubinaxe.weebly.com/uploads/1/3/2/6/132681619/miwigusabotevo_nowogadefud.pdfIn PDF document text
    • http://www.museopizarra.com/ckfinder/userfiles/files/kexanojasejutum.pdfIn PDF document text
    • https://tatidadimu.weebly.com/uploads/1/3/5/3/135383915/80a9f5.pdfIn PDF document text
    • http://status.cz/UserFiles/File/rufimopegajudevowel.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620658866dfcc---buxidalubonopufobirazowa.pdfIn PDF document text
    • https://topconta.ro/userfiles/file/kuwipetovisena.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/bezevakipumavukiverite.pdfIn PDF document text
    • https://cnprint.ro/userfiles/file/58243977733.pdfIn PDF document text
    • https://funobijego.weebly.com/uploads/1/3/1/6/131636789/2419752.pdfIn PDF document text
    • https://vodoxakitukep.weebly.com/uploads/1/3/4/3/134335140/tazexelakukedi_kivujomirax_kojuzapijosir_kazufew.pdfIn PDF document text
    • http://dtmaso.com/public_html/Imagens/file/fegusivegizunexuxel.pdfIn PDF document text
    • https://nitavadokeja.weebly.com/uploads/1/3/1/1/131163909/jakiminawa_refabalononim_luxetunisidik.pdfIn PDF document text
    • https://xujeloza.weebly.com/uploads/1/3/4/0/134096435/3149277.pdfIn PDF document text
    • http://irvinenott.co.uk/ckfinder/userfiles/files/kemomutitegafitepukeba.pdfIn PDF document text
    • http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/vekupaselojizowesu.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=bedava+m%C3%BCzik+indir+y%C3%BCkle+mp3PDF 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_off0004a4b7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a4b7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a4b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4B7 10916 bytes
SHA-256: 473b8d9c2524f14873ef6e88125b033b1179ebe207299443b218b7e90d3411b5
font_01_sfnt_off0004bde5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDE5 18916 bytes
SHA-256: 34ae9e085b47fdfcd0a003bec316e605fdb7963042ed0ac3efef533cc2126d58
font_02_sfnt_off0004ed15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED15 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1