Malicious PDF — malware analysis report

Static analysis result for SHA-256 634aba56757e7216…

MALICIOUS

PDF

87.1 KB Created: 2022-03-21 17:53:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: fcb8dbc571d7cfe2910bd53bdfafb410 SHA-1: d6d684f98e5ee09bef6d6bedc87959c649c9a530 SHA-256: 634aba56757e7216136701db353cbb2a7d946dc936edb8a00d3b7eb626db725a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9902

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
  • 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.
  • 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://mb-classic-service.de/userfiles/file/169145915.pdf In PDF document text
    • http://dirk6.3pi.org/images/uploadedimages/file/18606127228.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/taret.pdfIn PDF document text
    • http://aluminial.pnh.pt/js/ckfinder/userfiles/files/suzim.pdfIn PDF document text
    • http://cluboutletmoto.net/campannas/file/fajisiverokegewufijit.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/60754788445.pdfIn PDF document text
    • https://oldalunk.hu/userimages/files/mesotoz.pdfIn PDF document text
    • https://nothingbutsafetyglasses.com/userfiles/file/81953569267.pdfIn PDF document text
    • https://vinacoma3.vn/userfiles/file/pojuxalomapemeza.pdfIn PDF document text
    • http://katela.net/userData/board/file/74300071665.pdfIn PDF document text
    • http://schokoladenfontaene.de/idata/32086383064.pdfIn PDF document text
    • https://www.veedik.net/assets/admin/kcfinder/upload/files/gotomejebetozumapojuzam.pdfIn PDF document text
    • http://deliver.cueicha.com/assets/upload/files/32329635952.pdfIn PDF document text
    • https://ongnuocdenhat.com/upload/files/70097226694.pdfIn PDF document text
    • http://spodne-pradlo-2bpoint.sk/UserFiles/File/vimajiwe.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/ddaab6e62c0e4ab9f96847b6f37a343e/12712530420.pdfIn PDF document text
    • http://thegoshow.net/userfiles/file/73273510645.pdfIn PDF document text
    • http://sochi-polyana.com/ckfinder/userfiles/files/58522654548.pdfIn PDF document text
    • http://chineseclothingonline.net/File/13860011155.pdfIn PDF document text
    • http://mackits.eu/image/41227223345.pdfIn PDF document text
    • http://ed-web.cz/userfilesfile/5438340513.pdfIn PDF document text
    • http://haozuowenwang.com/imagefiles/file/sexemekeb.pdfIn PDF document text
    • https://ij-ph.com/admin/SchoolFiles/files/tovabivuzenazusijudofiju.pdfIn PDF document text
    • http://sedistec.de/img/uploads/files/95916462425.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/88370811923.pdfIn PDF document text
    • http://eko-uklid.com/files/file/53696972669.pdfIn PDF document text
    • http://ocalsandalye.com/panel/kcfinder/upload/files/71530700898.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=revolutionary+girl+utena+worth+watchingPDF link annotation
    • http://a-pro-peau.fr/userfiles/file/51997270016.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_off0000efe7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000efe7.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE7 10752 bytes
SHA-256: 0d7d64bd4d7b560d4ba70bdf67c4712d9022036e039878649ca95755f85e851a
font_01_sfnt_off000108a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A9 18036 bytes
SHA-256: cd1468c983cb2a14676f3eab117c0c60e95e219f68b49285cc48bc2af06b66da
font_02_sfnt_off000136ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136CA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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