Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d33c0aeef5d644…

MALICIOUS

PDF

272.6 KB Created: 2022-03-12 10:02:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 058bbe635f69c2a32edfc806c2322c08 SHA-1: be286fc87d9d4e7d71abdf78d1831949ae64912c SHA-256: b5d33c0aeef5d644800a06ec61a254077c3b2ba2e2e32e8690cd455ff3ac7f60
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6059

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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://wirut.co.za/XSRYdR1H?utm_term=cantilever+beam+experiment+pdf PDF link annotation
    • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/sofetogugeva.pdfIn PDF document text
    • http://jn-zhsc.com/upload/61752391623.pdfIn PDF document text
    • http://expresskaliski.info/file/24827709196.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/52184819453.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/namuzame.pdfIn PDF document text
    • https://maintogelonline.bet/contents/files/99014426143.pdfIn PDF document text
    • http://progfin.pl/userfiles/file/71901017528.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16225a10d4e8db---polefuwabelufonujozuju.pdfIn PDF document text
    • http://zavodmdu.ru/userfiles/files/46667194594.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/b73aebdd8a98f4c8f547dec55a1ac0e3/33556025606.pdfIn PDF document text
    • http://jmk.kr/ckfinder/userfiles/files/98006949207.pdfIn PDF document text
    • http://parfumerieindex.nl/images/uploads/dodixesazemirejagam.pdfIn PDF document text
    • http://cartopack.com/Images/file/besedipivoxunatare.pdfIn PDF document text
    • https://www.iccis20.scrs.in/kcfinder/upload/files/67244201106.pdfIn PDF document text
    • https://oilbasaro.com/web/images/ckfinder/files/20220206082506.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201fb1681b78---45729732868.pdfIn PDF document text
    • http://sparan-art.ru/ckfinder/userfiles/files/wipuxotosoxekonovidiwor.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1620039c549aed---dimuvapagogamekirafotuf.pdfIn PDF document text
    • http://fittbikese.hu/files/file/wexexomadaterozena.pdfIn PDF document text
    • http://www.superprzygoda.pl/galeria/files/74249842118.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/kojonimijuruxoj.pdfIn PDF document text
    • https://isgz.me/userfiles/file/xonimabavosumes.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/pimamojadorajoz.pdfIn PDF document text
    • http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/pomezonul.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a1b3ffd2b80f86adbcb7862cf5045492/nebamad.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/91954004399.pdfIn PDF document text
    • http://tks-forever.com/upload/2022/03/04/file/nuzonufudozamofu.pdfIn PDF document text
    • https://heks-tech.com/app/webroot/userfiles/files/negiwidobiwewevaxozumoket.pdfIn PDF document text
    • http://irs-messtechnik.at/upload/vazarosazevefusavopupoxo.pdfIn PDF document text
    • https://drterrace.com/london-100.com/userfiles/file/feratedorutuzopip.pdfIn PDF document text
    • https://0955205219.jwa.tw/userfiles/files/17002954928.pdfIn PDF document text
    • http://www.matrixaviationfueling.com/assets/ckeditor/kcfinder/upload/files/21799956338.pdfIn PDF document text
    • https://www.amc-lda.com/assets/kcfinder/upload/files/83377582420.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621a649e80c24---dufatene.pdfIn PDF document text
    • http://nhakhoasaigonkimcuong.com/uploads/images/files/bowefozilagofoli.pdfIn PDF document text
    • https://bharatiyabhashaparishad.org/ckfinder/userfiles/files/55300332017.pdfIn PDF document text
    • https://albizy.com/ckfinder/userfiles/files/52325073030.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/wusuv.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_off0003d167.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d167.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D167 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003e882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E882 18496 bytes
SHA-256: c9dafd240ade569a82e4e508b342ca5c1aaebfb34d09dea9fc52b0f469ec1b18
font_02_sfnt_off00041975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41975 10708 bytes
SHA-256: 9c5163e26ee39c917940eaf06103aba6436d968e4780b8bc0499635557125738