Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8b5ef1112fa07…

MALICIOUS

PDF

351.7 KB Created: 2022-01-28 23:18:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 0a088cce7c604620ada4988a1e636777 SHA-1: a486b5b61b0654c99497d5ee7ab6519e5a9376b4 SHA-256: a4f8b5ef1112fa07812575ba6e753eacf7d8ca50349938ea1660209de35fc2f7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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://yubit.co.za/XSRYdR1H?utm_term=coenzyme+q10+ampoule+sheet+mask PDF link annotation
    • http://northmarking.com/userfiles/files/ranetafopivufu.pdfIn PDF document text
    • http://agriturismoilnoceto.com/userfiles/files/49899561959.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/rovuraxusefebojikigexiwip.pdfIn PDF document text
    • http://xn--hh0b97d8is16e.com/userData/board/file/37270357368.pdfIn PDF document text
    • https://bivalyracing.hu/files/file/4641394977.pdfIn PDF document text
    • https://www.danielbarboza.com.br/v2/meuAdmin/inclusos/plugins/ckeditor/plugins/kcfinder/upload/files/kezevuxinivovikadi.pdfIn PDF document text
    • https://ms01bet.net/contents/files/29018848115.pdfIn PDF document text
    • http://nhadeptannguyen.com/uploads/files/gefotozadilixepe.pdfIn PDF document text
    • https://eliteprotectiveservices.net/ckfinder/userfiles/files/16356095710.pdfIn PDF document text
    • http://francescofesta.it/userfiles/files/90310726911.pdfIn PDF document text
    • http://bjbtrh.com/files/pic/file/20064357214.pdfIn PDF document text
    • https://proetcontra.hu/userfiles/file/13476491715.pdfIn PDF document text
    • http://kasargod.net/uploads/file/64929482347.pdfIn PDF document text
    • http://pcserviszlin.cz/ckfinder/userfiles/files/rigunoluzupoj.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/zawiwekanamu.pdfIn PDF document text
    • http://srilakshmienterprises.net/uploads/katewalofez.pdfIn PDF document text
    • http://timebymtm.com/upload/files/80277512419.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/202111221651342499.pdfIn PDF document text
    • https://oreopay57.com/ckfinder/userfiles/files/54228455967.pdfIn PDF document text
    • http://rzn-house.ru/upload/file/vanixuvifubipudijeno.pdfIn PDF document text
    • https://khonggiansangtao.com/platformecom/img/upload/file/50785717657.pdfIn PDF document text
    • http://shasenconsulting.com/assets/ckeditor/kcfinder/upload/files/fesemavubuzikeja.pdfIn PDF document text
    • https://malabarmail.com/ckfinder/userfiles/files/mizamerimowu.pdfIn PDF document text
    • http://shipsupply.ru/userfiles/files/71482143889.pdfIn PDF document text
    • http://nandishoverseas.com/UserFiles/File/5998117831.pdfIn PDF document text
    • http://hotdeals24x7.com/ci/userfiles/files/106652471.pdfIn PDF document text
    • https://tramtron.vn/uploads/files/files/gukekixazanirugel.pdfIn PDF document text
    • http://wok4all.nl/newerac2c/userfiles/file/14840038896.pdfIn PDF document text
    • http://centrlita.ru/archive/image/file/21152748446.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/161bf8371933f6---16041639277.pdfIn PDF document text
    • https://webmedcentralplus.com/userfiles/file/gajovefep.pdfIn PDF document text
    • http://cleversystems.ru/userfiles/file/siromoruvur.pdfIn PDF document text
    • http://plechotice.sk/tmp/file/85138757723.pdfIn PDF document text
    • https://brahmagnanam.org/fck_uploads/file/4272821883.pdfIn PDF document text
    • https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/56151644173.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/f0d3424f0419eb94352eaccee7a18e70/sepekerurewupulugatav.pdfIn PDF document text
    • http://htbestcomputer.com/media/ftp/file/10129768538.pdfIn PDF document text
    • http://svsteinfurth.de/radsportfiles/file/xaror.pdfIn PDF document text
    • http://vinacafe-dalat.com/Images_upload/files/xinogofew.pdfIn PDF document text
    • https://hgd.hr/admin/kcfinder/upload/files/gujita.pdfIn PDF document text
    • https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/judimakaxera.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_off000506ee.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000506ee.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000506ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x506EE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00051d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51D92 11044 bytes
SHA-256: 9cfabb272016129b9e0d42d47683a1a4917cf363e24f834c332f1e2251aeb2f4
font_02_sfnt_off00053741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53741 26980 bytes
SHA-256: 4bfd69ee9811c40e6e2571afec131aff0f46cc89a96c76af042ebe9583b01dd0