Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b67d3a215af1d4c…

MALICIOUS

PDF

553.3 KB Created: 2022-01-03 17:06:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: ecbd8cfab3e379cc0f22388a3f3b2aae SHA-1: 44e061af3ecccf273f5b411ff088ba623fcb5bb5 SHA-256: 2b67d3a215af1d4cce256f33b83818e46dba4d2aae6ef703bc54f27db3eb8b5c
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4039

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://bestapp4u.com/admin/uploadedfiles/file/43663119967.pdf In PDF document text
    • http://casier-a-bouteilles.fr/file/xofetakatilebevoxim.pdfIn PDF document text
    • https://spitalmoldovanoua.ro/ckfinder/userfiles/files/xelesudadep.pdfIn PDF document text
    • http://ihdbd.org/upload/files/40017203501.pdfIn PDF document text
    • http://cplust.com/upload/serback/files/20211204074323.pdfIn PDF document text
    • https://astefin.ro/ckfinder/userfiles/files/fujadovas.pdfIn PDF document text
    • https://playerpress.com/ckfinder/userfiles/files/27236492214.pdfIn PDF document text
    • http://ecocj.com/userfiles/file/20211216225754.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/penuwejuxudigekudopu.pdfIn PDF document text
    • http://superazs.ru/images/news/file/baselil.pdfIn PDF document text
    • http://hotelalbicia.com/userfiles/file/wopezex.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/86476503967.pdfIn PDF document text
    • http://wefocusdesign.com/upload/files/luboguzuja.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/96707069270.pdfIn PDF document text
    • http://jayeonrak.com/upfile_editor/2021/files/zukiwafufijukapavetesari.pdfIn PDF document text
    • http://detskaoptika.cz/ckfinder/userfiles/files/44374767829.pdfIn PDF document text
    • https://gheysenreal.com/uploads/files/jipulinupabenizufafo.pdfIn PDF document text
    • http://ekotop.eu/userfiles/file/tefadudamojofuwo.pdfIn PDF document text
    • http://renovfab-menuiserie.com/userfiles/file/tilanosajebijed.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/vamemaned.pdfIn PDF document text
    • http://sinoorchids.com/image/file/bufatadetekutogoxeve.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16188f9f240129---nawajefezuko.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/UsNeCLCzgYg/uplcv?utm_term=wheat+free+diet+pdfPDF 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_off00083191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83191 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00084830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84830 20616 bytes
SHA-256: 91ba14162a90760aa954eda7647b41e2fee4276aa6762890cbf55c7b3fca4a40
font_02_sfnt_off00087eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EED 10152 bytes
SHA-256: a4cf69ce7e56eb8dd4b285c387f88f678ead48e6cd2df71de6b6c0304ffb6462

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