Malicious PDF — malware analysis report

Static analysis result for SHA-256 1910a77180522eac…

MALICIOUS

PDF

81.9 KB Created: 2022-04-10 02:05:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 08d7556d9bf3c34b45f477b321533326 SHA-1: 76224f3b2b4951c985dc3746472152f5f3bdbc6a SHA-256: 1910a77180522eacb4eee1b1fa168fa7f188257c9c1f257ded0063475260f745
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://sunuf.co.za/YmrXLWy8?keyword=zoom%20a2%20manual%20portugues PDF link annotation
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1623b6658d4655---27354823631.pdfIn PDF document text
    • http://tsuyopillar.com/assets/kcfinder/upload/files/foxuwupu.pdfIn PDF document text
    • https://dreamgroupkr.net/FileData/ckfinder/files/20220327_7F92DB01495B321E.pdfIn PDF document text
    • http://neodermclinic.com/file_media/file_image/file/94121998172.pdfIn PDF document text
    • http://c2r.su/uploadfiles/file/2022032815183873499.pdfIn PDF document text
    • http://sabotage-rockgroup.ru/upload/files/sovukus.pdfIn PDF document text
    • https://www.cuadernosmanchegos.com/panel/cuadrodemandos/assets/ckeditor/kcfinder/upload/files/30720646508.pdfIn PDF document text
    • https://dermatologie-chamonix.com/userfiles/file/53510724169.pdfIn PDF document text
    • https://hygienika.sk/userfiles/file/76879068279.pdfIn PDF document text
    • http://plncse.hu/php_data/file/kajole.pdfIn PDF document text
    • https://biaplan.hu/images/fck/files/81797412658.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/wobet.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/162400c3e6ce76---60833458624.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/zidepotisoz.pdfIn PDF document text
    • https://larustt.com/upload/ckfinder/files/bumidijo.pdfIn PDF document text
    • http://www.prodomasa.com/ckfinder/userfiles/files/25550919777.pdfIn PDF document text
    • https://mk-sito.it/uploads/file/21170181774.pdfIn PDF document text
    • http://immodraft.de/images/architekten_agentur_images_/file/21309890954.pdfIn PDF document text
    • https://drrajanmahtani.com/userfiles/files/bumolulidesiluv.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/kitovavovunurikag.pdfIn PDF document text
    • https://technopacific.cl/jamila/admin/uploads/file/nesogufagirimob.pdfIn PDF document text
    • https://tes-sys.com/uploads/ckfinder/files/20220401/16487433294873.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9FA 10688 bytes
SHA-256: 9db4b11c53c5499a00051fd9bdf386e4a81896ba3bf2adf7f28ff6b4db52bd40
font_01_sfnt_off0000e291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE291 3920 bytes
SHA-256: fca8eff7e46090b085a7996224b1cf0f7c89bac40d2b54d69ed02af78c87b905
font_02_sfnt_off0000f1cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off000109dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109DD 17288 bytes
SHA-256: 3dc71eca6e77b32b1ef84def8947ad44591945bbfc970d11308be92e8cfc0179

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