Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c853f8d80a5597…

MALICIOUS

PDF

290.7 KB Created: 2022-02-26 20:11:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 30dabde8771d63610b11a58f0f42f342 SHA-1: 78eb76f3d8fa187a4bd84832d2e1d53f8b647083 SHA-256: a9c853f8d80a559709c0cd7f8610240c6c4713b74ff4933880dc40bd764d1163
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7430

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://norin.co.za/XSRYdR1H?utm_term=ds+emulator+ios++free PDF link annotation
    • http://irk-yoga.ru/upload/files/fagojodixabekorigaz.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/97962262930.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name/files/lotinaf.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/98401096930.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/882segi6vvh3l9du482p882tpa/8458076997.pdfIn PDF document text
    • http://camberwelltaxi.com/survey/userfiles/files/70994649448.pdfIn PDF document text
    • http://degeninhotel.ru/admin/ckfinder/userfiles/files/rizowapudipodepa.pdfIn PDF document text
    • http://geteffective.biz/uploadfiles/file/lirekisapeg.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/lafuwizimikiduk.pdfIn PDF document text
    • http://arniuniversity.in/ci/userfiles/files/79053642086.pdfIn PDF document text
    • http://capitaldanceacademy.com/userfiles/files/70232740191.pdfIn PDF document text
    • https://jfd.news/app/webroot/uploads/files/pamusutudesibalinewuvoxi.pdfIn PDF document text
    • http://klubalfa.org/img/userfiles/file/jorafumowemiwewijaga.pdfIn PDF document text
    • http://naszymsladem.pl/upload/file/91910607504.pdfIn PDF document text
    • http://support-cmu.com/filedata/file/83213219713.pdfIn PDF document text
    • https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/41637760251.pdfIn PDF document text
    • https://tnmkor.com/FileData/ckfinder/files/20210728_2F76F999B04FAF8F.pdfIn PDF document text
    • http://bbckorea.org/user_data/kcfinder/files/virabu.pdfIn PDF document text
    • http://kunmobile.vn/files/uploaded/20210814/file/50442637669.pdfIn PDF document text
    • http://ibarugi.com/fckeditor/userfiles/file/fulolakipupanonuzivotipor.pdfIn PDF document text
    • http://moneymaker-gold.de/files/tibufisujutomonebo.pdfIn PDF document text
    • http://pcwenhua.com/uploadimg/file/1625281225296299154.pdfIn PDF document text
    • http://www.madiran-cruduparadis.fr/ckfinder/userfiles/files/53089271924.pdfIn PDF document text
    • http://stlukesfp.org/ckfinder/userfiles/files/21680644708.pdfIn PDF document text
    • https://asplovdiv.izostil.com/userfiles/file/bopofozebawubidumolipaz.pdfIn PDF document text
    • https://geo-decouverte.kenamedia.ch/ck/ckfinder/userfiles/files/wokudanitejanunuk.pdfIn PDF document text
    • http://cokhitienvuong.com/uploads/files/rijevesemerizovatetotone.pdfIn PDF document text
    • https://drakbera.com/ckeditor/ckfinder/userfiles/files/59898058387.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161f16ec8896c7---87023029673.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 extracted file (font_00_sfnt_off0004238f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004238f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004238f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4238F 10372 bytes
SHA-256: a1b2d6a4c848bc1152d28c7338814e301ea118666860cc5ae3afd48b8021818d
font_01_sfnt_off00043b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43B0B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00045226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45226 16320 bytes
SHA-256: cc28dcf140f150c246fe9e419fd695f68215c0d89acbe3baa046e35411053bac