Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f682affa3d7002b…

MALICIOUS

PDF

323.2 KB Created: 2022-02-27 08:26:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 9750bdc6bb90ea650a30b929421d010e SHA-1: 139cf978b94cd8b1201a52ab613ef9138fd5a549 SHA-256: 8f682affa3d7002b9cca50a4fecd284f8ef60c27d84dcd5a7f62e66254ace880
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7026

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://wirut.co.za/XSRYdR1H?utm_term=kawasaki+jet+ski+stx-+15f+manual PDF link annotation
    • http://hanyangsteel.com/files/fckeditor/file/18484208496217ffb2293ed.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161077b859cbcc---85878569096.pdfIn PDF document text
    • http://ngocphuocjsc.com/public/default/ckeditor/files/8797479648.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/gotenirelarorogifefonab.pdfIn PDF document text
    • https://turkuazhost.com/calisma2/files/uploads/sativ.pdfIn PDF document text
    • https://ddmmaze.altruistictech.org/documents/img/upload/files/bigemonanofa.pdfIn PDF document text
    • http://schwierzy.pl/uploads/files/kipowegapavuji.pdfIn PDF document text
    • https://pmfegypt.com/userfiles/files/36544136176.pdfIn PDF document text
    • https://samngaimarble.com/html_upload/file/zidasanifodum.pdfIn PDF document text
    • http://webhoctot.com/app/webroot/uploads/files/7952145333.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/81929820663.pdfIn PDF document text
    • http://drairtools.com/ckfinder/userfiles/files/51512940204.pdfIn PDF document text
    • http://pro-elec.ru/ckfinder/userfiles/files/40853012750.pdfIn PDF document text
    • http://gourmethousemacau.com/UploadFilesfile///jikujosim.pdfIn PDF document text
    • http://e-store-sys.com/userfiles/file/19656527340.pdfIn PDF document text
    • http://viettelhaiphong.me/data/dulieu/files/59730304119.pdfIn PDF document text
    • https://tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/15299802523.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1618a48df509ab---76821524105.pdfIn PDF document text
    • http://coffeexclusive.com/kcfinder/upload/files/jokeze.pdfIn PDF document text
    • https://www.savininkai.lt/ckfinder/userfiles/files/37152994946.pdfIn PDF document text
    • https://tahsindincer.com/upload/ckfinder/files/68810885976.pdfIn PDF document text
    • https://pharma-tools.pl/galeria/file/1645615597.pdfIn PDF document text
    • http://emeraldcovepartners.com/_data/images/file/videpowajoloj.pdfIn PDF document text
    • https://blagoustroystvo24.ru/ckfinder/userfiles/files/75903473270.pdfIn PDF document text
    • http://hyswimpool.com/userfiles/lubogadevadebiwiweza.pdfIn PDF document text
    • http://lehoangcctv.com/ckeditor/kcfinder/upload/files/38901058864.pdfIn PDF document text
    • http://freewest.at/1553439456.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/49969855209.pdfIn PDF document text
    • http://imcet.org.tr/kcfinder/upload/files/20080493222.pdfIn PDF document text
    • http://huabulaw.com/uploadpic/2021-12/file/2021121518240673499.pdfIn PDF document text
    • http://bubb.cn/up_file/file/riliposipuwimarex.pdfIn PDF document text
    • https://gyogytorna-vac.hu/admin/kcfinder/upload/files/febirilodapizava.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_off0004a08b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a08b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A08B 10876 bytes
SHA-256: c1bfaf15ef1cdd818cb5d6ba19ba6210f5bc257ab53bfb4bd7eecc28c3b6ad3b
font_01_sfnt_off0004b9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B9CE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004d0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0E9 17180 bytes
SHA-256: 31fbe3b1c629fc25ee6156993e2d234e41a3d3e8e70b00d16407507ac410104c