Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e306bed7d632854…

MALICIOUS

PDF

77.1 KB Created: 2021-12-10 13:18:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e846e19d3e4e8ac36d4938ffd1e5857d SHA-1: c5c68d128819584d2a97ef6c607226130500fd3c SHA-256: 4e306bed7d6328541f72aedf8c4feb4ba7114484ffb74a512abe06140d5f135d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 http://sichera.eu/userfiles/files/revarugejonudisidimuvonar.pdf In PDF document text
    • http://tnslib.tools/userfiles/files/pogimagozoxepolasar.pdfIn PDF document text
    • https://dienmayngalinh.com/img/files/wedikuga.pdfIn PDF document text
    • https://aspit.ro/imagini_ws/jowakamumof.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b4699832a---lujezabatozesa.pdfIn PDF document text
    • https://mobiligennari.com/userfiles/file/75055081250.pdfIn PDF document text
    • http://slsnn.ru/content/files/kiwogilesulaj.pdfIn PDF document text
    • https://robertbah.si/files/file/21884990769.pdfIn PDF document text
    • http://scandinavia-ex.com/images/blog/file/wijupedivaxa.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161a06ae9cc013---ruziloliwijenafize.pdfIn PDF document text
    • http://yearbookplus.com/uploads/ckfinder/files/waxokepadefimururuba.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/18356183300.pdfIn PDF document text
    • https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/24699381018.pdfIn PDF document text
    • https://istanajp2.com/contents/files/26604579880.pdfIn PDF document text
    • http://tevukasveza.lt/ckfinder/userfiles/files/xiwedavasakuze.pdfIn PDF document text
    • https://pkbae.rs/files/11446251212.pdfIn PDF document text
    • http://hodinovysoused.cz/upload/file/78459684667.pdfIn PDF document text
    • https://rotitelor.com/contents/files/60477838231.pdfIn PDF document text
    • http://signexpowholesale.com/project-new/christianbook/upload_images/file/xesavot.pdfIn PDF document text
    • http://playoz.com/ckfinder/userfiles/files/94427469657.pdfIn PDF document text
    • http://smartraoptics.com/fck_filemanager_upload/file/vebebamalujosisunijid.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/53681865336.pdfIn PDF document text
    • http://roberthalasz.eu/uploads/file/xidile.pdfIn PDF document text
    • https://thietbiotoviet.com/Images_upload/files/43133721707.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/5bhJmFgkeCE/uplcv?utm_term=minn+kota+mk-ec-15+battery+charger+extension+cablePDF 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_off0000c5a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A8 11336 bytes
SHA-256: 66628f9cc180b306d9b8a06952971fb85e2da938366b3be77e3558c6525bc988
font_01_sfnt_off0000e05d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6FC 18088 bytes
SHA-256: 4c75ede74e7a116d6753df9e1fa956e52ad0f48ea901685f5121f5952875a36f

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