Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c4bde59b5c3ca5…

MALICIOUS

PDF

288.9 KB Created: 2022-04-07 21:06:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: f9728444f21c018dcc892fce4bf23aa1 SHA-1: be751c0d03cbed4b1fd248eca685ef46fe3b1089 SHA-256: a9c4bde59b5c3ca5bed8888a160abc3badcf62cc36cd5697b88b45dcb96a6c38
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6859

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://sisebixa.weebly.com/uploads/1/3/4/6/134625325/zotozewuv.pdf In PDF document text
    • https://lewezuwarekizes.weebly.com/uploads/1/3/4/0/134040914/kixaneko.pdfIn PDF document text
    • http://edmunditemissions.aboutgiving.net/sites/default/files/editor/file/58839372094.pdfIn PDF document text
    • https://gavebinakufir.weebly.com/uploads/1/3/2/3/132302735/6e749872845.pdfIn PDF document text
    • http://dc-184e2b96ee46.haribhoomi.com/userfiles/file/36247845183.pdfIn PDF document text
    • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/nixen.pdfIn PDF document text
    • http://kqcme.yiaiwang.com.cn/upload/files/kebiwidizegixowovaja.pdfIn PDF document text
    • https://masterjobintl.com/ckfinder/userfiles/files/reliligifefuferuwixivid.pdfIn PDF document text
    • https://lowobuganigazo.weebly.com/uploads/1/3/1/1/131163610/7f1b41c.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/79465261774.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16249447fc68c8---wemenebazigoji.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/50181868228.pdfIn PDF document text
    • https://triangle-electronics.com/assets/userfiles/file/tiwese.pdfIn PDF document text
    • https://btsis.com/upload/ckfinder/files/94939551112.pdfIn PDF document text
    • http://www.procuradoresgipuzkoa.com/js/ckeditor/kcfinder/upload/files/rexagewuwapatevi.pdfIn PDF document text
    • http://brainbond.ro/userfiles/file/79105819989.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/bozib.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/xigurenikolezoxal.pdfIn PDF document text
    • https://ulicetwojegomiasta.pl/kcfinder/upload/files/xuwawonupum.pdfIn PDF document text
    • https://heyratacademy.ir/file/73942179597.pdfIn PDF document text
    • http://www.dispatchls.com/backend/web/kcfinder/upload/files/90128018689.pdfIn PDF document text
    • https://sunkamalzemecilik.com/userfiles/file/bezijozufe.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/4856396776.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=present+continuous+forma+afirmativa+negativa+e+interrogativa+ejerciciosPDF 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_off0003f6f0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f6f0.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f6f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F6F0 20492 bytes
SHA-256: 3bcf37ab5b7c94d84063f9be3f36b59316160b907cce9434ef3035ce9883c38e
font_01_sfnt_off00042c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42C89 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000444a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x444A0 10932 bytes
SHA-256: b2ff08aada35801f7560a5e3560f7065ed4c8caa8cbad197b16f1f51fae5d270
font_03_sfnt_off00045dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45DFD 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f