Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d219fc9d1b6ffb…

MALICIOUS

PDF

73.4 KB Created: 2021-09-16 12:07:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 187343c2d4cb98e13d5036d3fb088a9a SHA-1: b235b230f7163a45cd44eaa61c35ce2ad2e33565 SHA-256: c5d219fc9d1b6ffb71ec310ec07394d052fc28a3a0c06c786bcb32426d04443a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://hourinkan.net/js/upload/files/rumemifizigegef.pdf In PDF document text
    • http://kuppersbusch.hu/userfiles/files/zosijuzidunapufom.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/samedu.pdfIn PDF document text
    • http://hotelrealerimini.it/userfiles/files/82008235194.pdfIn PDF document text
    • https://vipbeachhouse.com/uploads/editor/file/zonarinuxoguponas.pdfIn PDF document text
    • http://awarelaxcentrum.cz/user_files/file/guwisopolidavijajuxusow.pdfIn PDF document text
    • http://gocchame.vn/app/webroot/img/uploads/files/47328953443.pdfIn PDF document text
    • https://vyrukrc.lt/userfiles/file/20075870531.pdfIn PDF document text
    • https://ikuseikyokai.jp/ckmedia/files/69870392693.pdfIn PDF document text
    • http://lapawan15.com/shop/fck_file/file/89517330868.pdfIn PDF document text
    • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/94932829420.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613983ee64472---dokajidoxekaw.pdfIn PDF document text
    • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/9251642799.pdfIn PDF document text
    • https://atasuorganiktarim.com/upload/ckfinder/files/16843578713.pdfIn PDF document text
    • https://klcconsulting.eu/klc/file/jeruzinekubikodoraxurebog.pdfIn PDF document text
    • http://audiohrestomatiya.ru/content/file/5142566197.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/venaxozonanimajadawuv.pdfIn PDF document text
    • http://7seapharmtech.com/Uploadfiles/files/10877649217.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=lean+muscle+meaningPDF 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 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_off0000bd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD35 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD547 17224 bytes
SHA-256: 6253f6a77554f37187cfe92cee5f0f9f66cbed09db1892c7330f1cefeee45aa8
font_02_sfnt_off000101c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C8 10312 bytes
SHA-256: c9374d6617b7824b92f0bf93d6a6f663c800ed98ba448f45db6a53be80569ea7