Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8a4bb3c4545ea4…

MALICIOUS

PDF

75.5 KB Created: 2021-10-03 06:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 21e2e11276b17addfe7a8679854b824a SHA-1: d585215c04031ffe2c0d27af78dec5e87671e739 SHA-256: 5d8a4bb3c4545ea4a0d2c39f8dabc11e15800d550789ba78c170d5127f1d914e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://smidgel.ru/uplcv?utm_term=get+settled+in PDF link annotation
    • http://propack-th.com/image/upload/File/zajewixumape.pdfIn PDF document text
    • https://www.smartfutureexpo.com/ckfinder/userfiles/files/6449226982.pdfIn PDF document text
    • https://ubk-sad.de/azubi/userfiles/files/37560757687.pdfIn PDF document text
    • http://baby-daycare.com/uploads/files/202109081152299140.pdfIn PDF document text
    • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/qd4eb4cahgtlas1ea594e35u83/11276973183.pdfIn PDF document text
    • https://pre-www.bridge-college.com/uploaded/ckeditor/files/jalefiwidosamepuxulenoveb.pdfIn PDF document text
    • http://ekotop.eu/userfiles/file/12864759102.pdfIn PDF document text
    • http://dr-onesrl.com/userfiles/files/sowifajolivopifagizexebuw.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/46018010362.pdfIn PDF document text
    • https://resicolor.com/upload/files/46358486260.pdfIn PDF document text
    • http://articolo17.it/siti/usr/foto/files/76463481816.pdfIn PDF document text
    • https://www.meditech.cz/ckfinder/userfiles/files/gizilevirotu.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/xebejal.pdfIn PDF document text
    • http://swaminarayangm.org/userfiles/file/15013191307.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/31802622131.pdfIn PDF document text
    • https://ostrichtours.com/ckfinder/userfiles/files/43834392769.pdfIn PDF document text
    • http://frchem.cn/upload/files/ziwevovum.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/36371560137.pdfIn PDF document text
    • http://parvazyab.net/basefile/api203/files/fiduvinidonovofovemowi.pdfIn PDF document text
    • http://astprom.ru/sites/default/files/file/tizasivos.pdfIn PDF document text
    • http://jkbprivateiti.com/userfiles/file/70417336721.pdfIn PDF document text
    • https://mayxaydungdailong.com/media/ftp/file/furobifej.pdfIn PDF document text
    • http://officinedesign.it/userfiles/files/92660505159.pdfIn PDF document text
    • https://keluargamimpi.com/contents/files/86641407621.pdfIn PDF document text
    • http://techbico.vn/uploads/image/files/wikilitugeja.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDAE 20144 bytes
SHA-256: fe20901f68a7a4f9e063888e944a4f27290bd4ea10a5c6b2e563451fb5c1b657
font_01_sfnt_off0000f2a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB6 9900 bytes
SHA-256: 61f5b54e1e2d2a40dce472789e1166ba53e88d00f4d4d4193453c4b8624093c6

Open this report in the interactive analyzer, or submit your own file for analysis.