Malicious PDF — malware analysis report

Static analysis result for SHA-256 2050442a22132371…

MALICIOUS

PDF

536.4 KB Created: 2022-03-04 12:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: e2e91ecb1b32f9ae314187f838d77bf3 SHA-1: b019e9fd0ac3a727f89e11ae1f57e1c40139dd44 SHA-256: 2050442a22132371146346556f0adb535f238a5deeb78ac7c4d5716b1b3b2b82
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8094

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 http://densayhongngoai.com/uploads/userfiles/file/9915724952.pdf In PDF document text
    • https://daquin-ferriere.fr/userfiles/file/49381910281.pdfIn PDF document text
    • http://truhlarstvisollner.cz/data/file/21302237882.pdfIn PDF document text
    • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/vireredebamunaxepeke.pdfIn PDF document text
    • http://tuyendung.btccorp.vn/uploads/files/15055550103.pdfIn PDF document text
    • http://gokea.org/upload/editor/files/sadora.pdfIn PDF document text
    • http://aptekarynek.pl/zdjecia/fck/file/84228997359.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1620880dbc2a82---79070483096.pdfIn PDF document text
    • http://pharmabiosolutions.com/filespath/files/20220206100706.pdfIn PDF document text
    • http://superazs.ru/images/news/file/katati.pdfIn PDF document text
    • https://i-triada.net/upload/files/morokovavipa.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/laniwatejubamaxub.pdfIn PDF document text
    • http://birdwatching.sk/media/file/xusas.pdfIn PDF document text
    • http://nextgems.com/ckeditor/kcfinder/upload/files/75756139412.pdfIn PDF document text
    • http://theartofdesign.nl/ckfinder/userfiles/files/wisalumadomegovaba.pdfIn PDF document text
    • http://knshzj.com/CKEdit/upload/files/fejimowineweg.pdfIn PDF document text
    • https://tekartltd.com/upload/files/71904158976.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=amazing+gingerbread+house+templatePDF 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_off0007f6f7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007f6f7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007f6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6F7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00080e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E12 16944 bytes
SHA-256: 51b0d79d3963dc4ba95f30eacc14d15b4c6089186bfcb7aae95314c793ca7261
font_02_sfnt_off000839ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x839EE 11120 bytes
SHA-256: 73ddf4eda130609a2ae8dc6c1e85faa81d63d95bab24e32012f5afc39c70a42f