Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4f18c013ec899a…

MALICIOUS

PDF

276.0 KB Created: 2022-03-13 13:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 942656e4d8acb614402889280a80019e SHA-1: 7b72109e0578f14fe5e3d36f89c23930bd1d0233 SHA-256: de4f18c013ec899a80bf16e2afc9a97791d4934c17f92a7b2b39a3f49d00f2a8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7039

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 https://sunuf.co.za/XSRYdR1H?utm_term=preschool+curriculum+template PDF link annotation
    • https://limsurdua.com/contents/files/83792925243.pdfIn PDF document text
    • http://stickerbarcode.com/file_media/file_image/file/42905388940.pdfIn PDF document text
    • http://hutnia.pl/userfiles/file/19718090098.pdfIn PDF document text
    • http://raudhatuljannah-gma.com/assets/kcfinder/upload/files/pegutogejidemivi.pdfIn PDF document text
    • http://tiendanatacion.com/noticias/files/judaromadezedibonub.pdfIn PDF document text
    • http://kredoteka.ru/uploads/file/72204495140.pdfIn PDF document text
    • http://safakkereste.com/kcfinder/upload/files/26808725796.pdfIn PDF document text
    • https://marmetal.cevhertemizlik.com/userfiles/files/jodedewipibazabeku.pdfIn PDF document text
    • https://watertorens.nl/userfiles/file/83268954787.pdfIn PDF document text
    • http://gkb-vityaz.ru/upload/files/valavix.pdfIn PDF document text
    • http://biurod9.pl/public/userfiles/file/56259916928.pdfIn PDF document text
    • http://jia-longsofa.com/uploadpic/jialong151126/files/202202250254188479.pdfIn PDF document text
    • http://yearbookplus.com/uploads/ckfinder/files/89129689782.pdfIn PDF document text
    • http://www.mab-solutions.fr/upload/file/87821347710.pdfIn PDF document text
    • http://expresskaliski.info/file/ladutenedezumiperatonu.pdfIn PDF document text
    • http://www.halabicaguitars.com/gfx/administration/js/ckeditor/kcfinder/upload/files/79761656732.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/652e22ece777ad35db4c6ed5ffc54a01/23755816100.pdfIn PDF document text
    • http://spasm-sympo.org/uploads/ck/admin/files/sijafuwu.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/3516780744.pdfIn PDF document text
    • https://cezartravel.hu/userfiles/file/dididovululagomopi.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/zalobilezemoduragojapafal.pdfIn PDF document text
    • http://mjacz.cz/soubory/files/53747152643.pdfIn PDF document text
    • http://www.alcera.ca/userfiles/file/wedejifowenudenosisi.pdfIn PDF document text
    • http://rztria.ru/kcfinder/upload/files/69898173082.pdfIn PDF document text
    • http://kozhencherrymtc.org/userfiles/file/65868907577.pdfIn PDF document text
    • http://guerrazzi.info/userfiles/files/18383464287.pdfIn PDF document text
    • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/wokopofox.pdfIn PDF document text
    • https://aviatroglo.fr/IMG/file/9052818962.pdfIn PDF document text
    • http://strap.sk/uploads/files/zivibiseradufeli.pdfIn PDF document text
    • https://www.naturecare.com.au/kcfinder/upload/files/levifebit.pdfIn PDF document text
    • http://parmalab.it/userfiles/files/52864321042.pdfIn PDF document text
    • http://asvpp.fr/pdf/11137326517.pdfIn PDF document text
    • https://artistaone.co/userfiles/files/78340594818.pdfIn PDF document text
    • https://wojczak.pl/userfiles/file/jelakavavovolakegesale.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621962a3521a1---24137841126.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/nisonezafuli.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/6on6npo1r68ac81nqbmf5f34su/lukakozalanijawijovu.pdfIn 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 extracted file (font_00_sfnt_off0003dea4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003dea4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003dea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DEA4 10636 bytes
SHA-256: a2c597d2cac278c1a3f5dd561affa86b08965aa383d198c35ad87bd2165d2d03
font_01_sfnt_off0003f704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F704 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00040e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40E1F 19272 bytes
SHA-256: 3d48091cae54f17d220a20fe4615c03e25bf25c0a49cb11b0d0eebc98d12d99f