Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3bf6baf8b21f5a…

MALICIOUS

PDF

1.40 MB Created: 2022-04-11 21:43:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2cc10f6da72639345788075c3dfcb360 SHA-1: 9e254b3b3a8c99eb0b5070a5811f1a9e44bd5f0d SHA-256: 4e3bf6baf8b21f5a6ed6fca4c07fa023f7c8b8ab47fb769c889d1b6d8380326a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0324

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
  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://fecuq.co.za/YmrXLWy8?keyword=which%20is%20the%20strongest%20type%20of%20intermolecular%20force%20between%20solute%20and%20solvent%20in%20br2 PDF link annotation
    • http://arborspringsforestry.com/img/files/17713969750.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1620632b26de4d---gunetutaku.pdfIn PDF document text
    • https://tinuvireredat.weebly.com/uploads/1/3/4/8/134864568/sagugab.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/11615871067.pdfIn PDF document text
    • http://soepcentrale-dekeyser.be/userfiles/file/76312691911.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1625318c2afe7f---36739885521.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/65460e7f927cd02656a3e19923d804d7/59982640235.pdfIn PDF document text
    • https://jss-moms.si/upload/File/59950876520.pdfIn PDF document text
    • http://an-ocn.ru/ckfinder/userfiles/files/23584529384.pdfIn PDF document text
    • https://vopovotapo.weebly.com/uploads/1/3/5/3/135324672/gunolisawure-vurasenogagi.pdfIn PDF document text
    • http://rcchoir.nl/upload/files/4213804166.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f86d1a663c---guderakak.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/21391722135.pdfIn PDF document text
    • https://xazojufez.weebly.com/uploads/1/3/4/6/134639306/fubilubi.pdfIn PDF document text
    • http://amst-cn.com/userfiles/file///vaduk.pdfIn PDF document text
    • https://gomemaliji.weebly.com/uploads/1/3/4/0/134040406/61ba1.pdfIn PDF document text
    • https://safopuxe.weebly.com/uploads/1/3/4/8/134893808/xawex-rawukobizir-subop.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/47157949456.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/72644637097.pdfIn PDF document text
    • https://nubesojobe.weebly.com/uploads/1/3/1/3/131398221/godemalizuwepol-kalitinen-kebikisewogaka-faxarozoki.pdfIn PDF document text
    • https://wipikiriku.weebly.com/uploads/1/3/4/6/134696444/bdc70c3e2f.pdfIn PDF document text
    • http://ptd-tver.ru/content/files/upload/files/satuf.pdfIn PDF document text
    • http://betenrealestate.com/sites/default/files/file/bebukixake.pdfIn PDF document text
    • https://transdeliveris.lt/userfiles/file/derukepuneme.pdfIn PDF document text
    • https://xurolimusogisuw.weebly.com/uploads/1/3/4/3/134395808/gobasu-fenajikamevimif-posirason-zorumojanozuka.pdfIn PDF document text
    • https://fecuq.co.za/YmrXLWy8?keyword=which%20is%20the%20strongest%20type%20of%20intermolecular%20force%20between%20solute%20and%20solvent%20in%20br2(lIn 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_off0015cf3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CF3A 25252 bytes
SHA-256: 85399cca4b437482b22afc304a25a9624b890521b45f1039b8930acf48a8be52
font_01_sfnt_off001610fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1610FA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0016291d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16291D 11920 bytes
SHA-256: c482214076d8963cfa7d48a31ec7473bf57e6d0b06f565871320137f5f929ad0