Malicious PDF — malware analysis report

Static analysis result for SHA-256 634ad45083055231…

MALICIOUS

PDF

75.3 KB Created: 2022-04-08 06:34:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 1f64a46064552980a074b48cf152be19 SHA-1: a5f2ccdc861a7618baf3206b10430d2f0f9dfab2 SHA-256: 634ad45083055231b4779edf7f4a95ff77fb4e5ec95a1d57b8e6ba8782a27930
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://sunuf.co.za/YmrXLWy8?keyword=diploma%20computer%20engineering%20books%20list PDF link annotation
    • https://zerregrafik.com/panel/kcfinder/files/96250886120.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/vamavuruxubakaku.pdfIn PDF document text
    • https://kimansion.com/uploads/file/51624293153.pdfIn PDF document text
    • http://maroba-zirndorf.de/file/kenokazavimesofiliba.pdfIn PDF document text
    • http://nattukoottam.com/userfiles/file/debemoviwotipegapowasasu.pdfIn PDF document text
    • http://preview2009.gothic-magazine.de/artikel_files/file/roxotiwidasizub.pdfIn PDF document text
    • https://cartafamiliar.ouvidoriasaojorge.com/cartafamiliar/uploads/file/95222838650.pdfIn PDF document text
    • https://rudevejujij.weebly.com/uploads/1/4/1/3/141372156/1647519.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/91091263717.pdfIn PDF document text
    • https://sazekunoteti.weebly.com/uploads/1/3/2/7/132740187/nokerotawiwo_lujafab_depes.pdfIn PDF document text
    • https://www.osazovanidps.eu/admin/kcfinder/upload/files/dunuzujazikiduki.pdfIn PDF document text
    • http://kompletucetnictvi.cz/files/file/febumumexunozasulu.pdfIn PDF document text
    • https://jejuzesegolazu.weebly.com/uploads/1/4/1/3/141332155/vorukowimi.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/9ab409a5b972488ec0a7d47c69be36f4/mufelakedulu.pdfIn PDF document text
    • https://worejatejele.weebly.com/uploads/1/3/4/0/134095890/e93e94.pdfIn PDF document text
    • http://mapect.com/upload/fckeditor/file/96989944500.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/lewewikuni.pdfIn PDF document text
    • http://faceti.es/fil/ckFiles/files/14672903221.pdfIn PDF document text
    • http://hkwwta.org/userfiles/sapunuzobotajufotinevub.pdfIn PDF document text
    • https://artgallery.devctn.com/ckfinder/userfiles/files/36013532441.pdfIn PDF document text
    • http://abovomedia.hu/_user/file/wabukuxunep.pdfIn PDF document text
    • http://tangneylaw.com/admin/images/file/wulim.pdfIn PDF document text
    • https://zawukidunizilo.weebly.com/uploads/1/4/1/3/141344262/7166047.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_off0000c240.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c240.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_off0000c240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC240 11048 bytes
SHA-256: ed55c93cbcb9b1d3bf1e1ee657c486f27611d5cc58b35d8b57c7ce8e6ed7b669
font_01_sfnt_off0000dbbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBE 16780 bytes
SHA-256: 353927b9ead9405f8debab7d0f2a3798378036e01b8561fae629bf2293eb0b7f
font_02_sfnt_off00010787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10787 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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