Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ad729dd36f11ae…

MALICIOUS

PDF

482.8 KB Created: 2022-03-18 10:47:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 263cb055e885c6027355b6ae2cece6ba SHA-1: 3fe7be36bc7ae8fd92ac7c079ed84d444cb64382 SHA-256: 18ad729dd36f11ae4893c465a92afe286ebe51f00831f86e31c4828da894d834
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4372

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
  • 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://nato-denkmal.de/uploads/file/86486400341.pdf In PDF document text
    • https://akproauto.net/nbloom/fckuploads/file/xizutatogawavirujugatep.pdfIn PDF document text
    • https://horgaszvelem.hu/ckfinder/userfiles/files/janadugidunepoxupepux.pdfIn PDF document text
    • http://nationalherbo.com/userfiles/file/96213034109.pdfIn PDF document text
    • https://i-triada.net/upload/files/68070499150.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2022021322470164.pdfIn PDF document text
    • http://janjoling.com/public/ckfinder/userfiles/files/dofeworisiradib.pdfIn PDF document text
    • https://astdubai.co/userfiles/files/91859864107.pdfIn PDF document text
    • http://mestan.by/images/file/61266874158.pdfIn PDF document text
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/nixafowanoxojepolivunu.pdfIn PDF document text
    • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/40568935505.pdfIn PDF document text
    • https://www.studiopicotti.com/_admin/kcfinder/upload/files/18287820766.pdfIn PDF document text
    • http://ty-int.com/files/files/musubejotela.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/sqn1sgmejers92grlgqmqm5ptj/xonekosalowadasenudasoju.pdfIn PDF document text
    • http://zjgyuanhong.com/v15/Upload/file/202222163086112.pdfIn PDF document text
    • https://www.voctestbursa.org/editconsole/kcfinder/upload/files/45771994651.pdfIn PDF document text
    • http://orthocarecentroortopedico.it/userfiles/files/kiwirenepobugofu.pdfIn PDF document text
    • http://svm.kalistecom.org/img/files/80407593812.pdfIn PDF document text
    • http://elitacasa.it/images/file/rozudowen.pdfIn PDF document text
    • http://kondicionery-bronnitsy.ru/upload_picture/file/9480431182.pdfIn PDF document text
    • https://www.hdod.emed.hr/admin/kcfinder/upload/files/13957662702.pdfIn PDF document text
    • https://ijpdua.com/contents/files/47793197360.pdfIn PDF document text
    • http://lasermedia.cn/userfiles/file/68507722267.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620a3b7b4cbd3---jokitapewer.pdfIn PDF document text
    • https://tranhdaquyhn.com/uploads/news_file/gosasuvaralimo.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/83990098053.pdfIn PDF document text
    • https://rockvalleytravel.net/files/files/98770082841.pdfIn PDF document text
    • https://vnycc.com/userfiles/file/40241095345.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/13493265333.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=free+excel+budget+sheetPDF 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 extracted file (font_00_sfnt_off00071b65.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00071b65.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00071b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B65 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00073280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73280 19028 bytes
SHA-256: 3b0a59b674698a7d2d48648091342d66df7e8de33cc661131c5741df3093e73b
font_02_sfnt_off00076421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76421 10488 bytes
SHA-256: df6544f216ac730f1612b63c99b9e502d021d99dbc09d33820c635c52b1febf0