Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b63aa920db2791a…

MALICIOUS

PDF

223.3 KB Created: 2022-01-11 04:34:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 0041e551ff6d8a1ec3a57489fe0429d8 SHA-1: aa15e164354825b35ce0bd9115afb46cadf2a9a4 SHA-256: 2b63aa920db2791a8b8acdbc27c46142c5b2efa96a3d241dbbc701d63016b068
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7758

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://synerhu.ru/uplcv?utm_term=free+vpn+server+for+android+phones PDF link annotation
    • http://boletos.luzservicos.com/ckfinder/userfiles/files/lanuxifoxigomuxonu.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/23000317592.pdfIn PDF document text
    • http://nhadephoanhao.vn/upload/ckupload/files/jutidajanunobovixudazug.pdfIn PDF document text
    • http://cermak-expo.cz/data/files/file/naduwijigisafojuja.pdfIn PDF document text
    • http://tipsclubcr.com/campannas/file/kotumexajavusinitatumulu.pdfIn PDF document text
    • http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/reborizide.pdfIn PDF document text
    • http://gimnazjum-krasiczyn.pl/img/userfiles/file/18416384191.pdfIn PDF document text
    • https://tndvn.com/js/ckfinder/userfiles/files/39482995064.pdfIn PDF document text
    • http://myslizdrave.com/soubory/26694564888.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/b630943870394d9b35a4df954815652e/bilumusopuvuwijon.pdfIn PDF document text
    • http://linklandhotels.com/upfile/editor/files/kelinepopekil.pdfIn PDF document text
    • https://mail.conepe.org.br/public/ckeditor/kcfinder/upload/files/21487096820.pdfIn PDF document text
    • https://keluargamimpi.com/contents/files/79497390495.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/dulilegevif.pdfIn PDF document text
    • http://bongoes62.dk/userfiles/file/judogagu.pdfIn PDF document text
    • https://vinocastillo.hu/editor_up/bukalazadaruvububofop.pdfIn PDF document text
    • http://gzafjc.com/uploadfile/files/dutivijezozovux.pdfIn PDF document text
    • http://amghanoi.com/images/ckeditor/files/dejezuketipivozukonufok.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/41708346097.pdfIn PDF document text
    • http://tangneylaw.com/admin/images/file/fozirusox.pdfIn PDF document text
    • http://hztjjsj.com/images/upload/File/kugasimanomivimeteduv.pdfIn PDF document text
    • http://hospitalitan.com/sites/default/files/file/jilufabo.pdfIn PDF document text
    • https://bakkerijkamstra.nl/userfiles/files/2626573613.pdfIn PDF document text
    • http://wsm.hk/images/uploadfiles/file/runaxovuwedidolarib.pdfIn PDF document text
    • https://willes-gb.com/uploads/files/202111042100504489.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_off00030ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30ECB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003256a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3256A 18824 bytes
SHA-256: 2d4ee35e27914e74619d2b17b4d912957dc054f1935fe869781ff05ea5ca00b9
font_02_sfnt_off000356a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356A8 10492 bytes
SHA-256: 5980566cea38086dd9bf82ff792e3248b7aff0dff2ee4ebad1e9554d32078257

Open this report in the interactive analyzer, or submit your own file for analysis.