Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a6d41d171ce572…

MALICIOUS

PDF

465.6 KB Created: 2022-02-08 08:04:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: bd89b898de2d709aceb4a4f8cd1d8ff5 SHA-1: 124704d7060b0b96badc2d4b5610a050fe0dd59d SHA-256: 18a6d41d171ce5720cb4999a4e6da19ae3f96c6e238ade99bee4ddf9de991b8b
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4370

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://www.cda.org.hk/ckfinder/userfiles/files/rawetudovu.pdf In PDF document text
    • http://www.afmc.edu.bd/public/files/assets/ckeditor/kcfinder/upload/files/8579049783.pdfIn PDF document text
    • https://pacpartner.net/images_client//imagesfile/kororabefudibabesetop.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/tezazupavirore.pdfIn PDF document text
    • https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/7646549072.pdfIn PDF document text
    • http://avvolodin.ru/upload/file/20625346644.pdfIn PDF document text
    • https://concurs-euclid.ro/upload/fck/fajewerofinokidizeze.pdfIn PDF document text
    • http://posuni.com/userfiles/file/sijezenomaboxaz.pdfIn PDF document text
    • http://bestbuyfromindia.com/userfiles/file/9596512579.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16190922b174a4---vipuwivivo.pdfIn PDF document text
    • https://andhimazhai.com/images/files/22712852237.pdfIn PDF document text
    • http://www.amoroso-ongakuin.com/upload/files/53926142908.pdfIn PDF document text
    • https://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/leguti.pdfIn PDF document text
    • http://intelibud.net/media/files_manager/files/wopavinozunapepi.pdfIn PDF document text
    • http://kokocurry.gm/userfiles/file/piregumik.pdfIn PDF document text
    • http://uforoi.com/app/webroot/uploads/files/51414821495.pdfIn PDF document text
    • http://pnmanagementsolutions.in/uploads/7097957781.pdfIn PDF document text
    • http://fanta-life.com/userfiles/file/2269316776.pdfIn PDF document text
    • http://unitec-egypt.net/userfiles/file/79960993980.pdfIn PDF document text
    • http://location-a-la-reunion.com/js/kcfinder/upload/files/wezimisenonopope.pdfIn PDF document text
    • http://tageedesign.com/ssmpt/documents/file/45687933507.pdfIn PDF document text
    • https://portalkucharski.pl/app/webroot/media/files/mewidezabi.pdfIn PDF document text
    • http://resheto.ru/users_images//fck/file/32599579117.pdfIn PDF document text
    • http://brmxn.com/userfiles/file/20210706073125_t6uho3.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/jivufalokaj.pdfIn PDF document text
    • http://dhs-bank-sample.com/app/webroot/js/kcfinder/upload/files/mipulibumutelu.pdfIn PDF document text
    • https://simon-daulte.com/ckfinder/userfiles/files/bunube.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/zawit.pdfIn PDF document text
    • http://sure2trips.com/bot/ckfinder/uf/files/65168160136.pdfIn PDF document text
    • http://dalieuht.com/app/webroot/uploads/files/zutugekemovatijafujazan.pdfIn PDF document text
    • https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/lebisuwisisafusuxo.pdfIn PDF document text
    • https://nvsrolko.org/ckfinder/userfiles/files/42739314204.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/74387498256.pdfIn PDF document text
    • http://voyagevietnamlaos.com/hinhanh/file/3921038244.pdfIn PDF document text
    • http://moto-bike.pl/userfiles/file/tawosijugezizomuzuros.pdfIn PDF document text
    • https://boulou.mrjean.fr/userfiles/file/63567042347.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/tisirifanel.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=arcgis+online+training+guidePDF 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_off0006db82.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006db82.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006db82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB82 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006f29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F29D 16692 bytes
SHA-256: 660a0f7bde29bbb365299d625dd4a6d850c00206f5d245588ba1064fd2ddbf88
font_02_sfnt_off00071e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E36 10628 bytes
SHA-256: 81c29fc5735a4fcdab949d9c3d716cac8d06a151a19307ac5d85febd7087fe9c