Malicious PDF — malware analysis report

Static analysis result for SHA-256 4459a215d13d414e…

MALICIOUS

PDF

329.8 KB Created: 2022-02-05 15:49:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 2df1f11d1d336bd09f563057ab1e1522 SHA-1: e1f8c097dfae09082be87fed9d248ffc6c3eb5cc SHA-256: 4459a215d13d414ecf53a560abb41f28595aedb2df7973bf59909f819ce2da1a
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6005

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yubit.co.za/XSRYdR1H?utm_term=writing+a+hypothesis+worksheet+pdf PDF link annotation
    • http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/lupamatuwikarezozexofugu.pdfIn PDF document text
    • http://psychologyforeverybody.com/ckfinder/userfiles/files/tizowasuf.pdfIn PDF document text
    • https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/subapuritaluv.pdfIn PDF document text
    • http://faithleader.org/js/ckfinder/userfiles/files/gufufejudurulu.pdfIn PDF document text
    • https://cleaner.pl/userfiles/file/keliruxupip.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/wogefamejunuponakufuwubo.pdfIn PDF document text
    • http://chizclean.ru/files/fck/file/39625513891.pdfIn PDF document text
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161b813f54ed90---sogezofigumikapi.pdfIn PDF document text
    • https://10kshot.com/customerinterview/ckfinder/userfiles/files/serena.pdfIn PDF document text
    • http://cdio.vn/uploads/userfiles/file/bimux.pdfIn PDF document text
    • https://renesens21.com/ressources/upload/files/fevibusagimepataloxefom.pdfIn PDF document text
    • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/45230728504.pdfIn PDF document text
    • https://rumahbaruku.com/contents/files/62196473535.pdfIn PDF document text
    • https://livermore.com/wysiwygfiles/file/75043019658.pdfIn PDF document text
    • https://dm288.com/slicice/file/xabelosoruzoni.pdfIn PDF document text
    • http://perilatomsk.ru/ckfinder/userfiles/files/96846364649.pdfIn PDF document text
    • https://retake.dk/ckfinder/userfiles/files/58256020739.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/161964ee61bc1d---80436829624.pdfIn PDF document text
    • http://dienlanhlongan.com/upload/files/zokoma.pdfIn PDF document text
    • http://sgadsahodayatarntaran.org/sahodyatarntarannew/userfiles/file/jutuzikafelasapaje.pdfIn PDF document text
    • http://andrewsexes.org/clients/867461/File/90988253148.pdfIn PDF document text
    • http://garmagostaran.com/Upload/file/60742378372.pdfIn PDF document text
    • https://thefencedocumentary.ca/adminfiles/file/59993881647.pdfIn PDF document text
    • https://hanomanberjaya.com/contents/files/nenit.pdfIn PDF document text
    • http://proclima-membranes.ru/userfiles/file/70034804479.pdfIn PDF document text
    • https://skostishoes.com/userfiles/file/takiseso.pdfIn PDF document text
    • http://prosquash.by/data/85992826485.pdfIn PDF document text
    • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/pativoginukenim.pdfIn PDF document text
    • http://koreaseals.com/ckfinder/userfiles/files/nunokonuzelo.pdfIn PDF document text
    • https://keluargamimpi.com/contents/files/71575368974.pdfIn PDF document text
    • http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/dokalisor.pdfIn PDF document text
    • http://mtreurope.com/ckfinder/userfiles/files/66331076249.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/1c7e8329048ae602124bf6807d622a11/25689202714.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1613f92fe4ecb5---tusujoxid.pdfIn PDF document text
    • http://grandwatergatehotel.com/upfile_hotel/files/29295082924.pdfIn PDF document text
    • http://artetendasud.it/userfiles/files/89363897351.pdfIn PDF document text
    • http://chroscina.com/userfiles/file/32988207401.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/gukujedelazerilawagevo.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 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_off0004bbdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBDD 16272 bytes
SHA-256: 13ac28fc7d8dd6fa9e3f9a80e87a509638e9ab8aec7cceaf043ceb844c73d494
font_01_sfnt_off0004e60e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E60E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004fd30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD30 11016 bytes
SHA-256: edf34a816754d0c9abd042c6740c70f948dd2d8602a6a30d5992078c8af9866f