Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de97f43cfae28af…

MALICIOUS

PDF

307.1 KB Created: 2022-03-23 17:34:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 7ea63361bbf914e5ccd8a16531815956 SHA-1: 8e336a3e31ac30564f0e5a52d0abc58fbdf781e4 SHA-256: 4de97f43cfae28af3afd02a607bf9ef8fa309a460145a4c2e1e7ae5d52cc63cb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6339

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://colod.co.za/XSRYdR1H?utm_term=gta+san+andreas+skip+mission+cheat+code PDF link annotation
    • http://group-anons.ru/userfiles/files/95717522489.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc478aecfe6---mulonemefu.pdfIn PDF document text
    • https://albertpalais.com/uploads/page-assets/files/sejaniwaworarok.pdfIn PDF document text
    • http://vladimir-kopilka.ru/sites/default/files/file/gujakewe.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/bc5f8dd9cf6b554ccff88479499629d0/38608746576.pdfIn PDF document text
    • https://rdw-wolf.de/backend/ckfinder/userfiles/files/91773198455.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/162269a5aed1d3---2042650382.pdfIn PDF document text
    • https://www.abrasco.org.br/ckfinder/userfiles/files/89659996228.pdfIn PDF document text
    • http://agro-pasz.pl/ckfinder/userfiles/files/76921228425.pdfIn PDF document text
    • http://dodogs.ru/sites/default/files/file/muzonewakef.pdfIn PDF document text
    • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/64687591480.pdfIn PDF document text
    • http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/89966418611.pdfIn PDF document text
    • https://pmo.jot-solutions.com/files/vagagidupukigakexutaxon.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/gemidonirude.pdfIn PDF document text
    • http://primesystem.kz/app/webroot/js/kcfinder/upload/files/mixel.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/wisitibibopusogoxos.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/damuzojutajewulak.pdfIn PDF document text
    • http://agro-vostok.ru/userfiles/file/ziwegepizidulufozejisup.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16206dccc98514---bijozaledudujoseses.pdfIn PDF document text
    • https://www.fcefrance.com/kcfinder/upload/files/81086259947.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202202181952517611.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/9ab95a6f55a8ea44e11ce5295d495e24/gijexirubovojajujog.pdfIn PDF document text
    • https://basundharamart.com/userfiles/file/moxekupa.pdfIn PDF document text
    • https://kinohorror.com/upload/file/70253790688.pdfIn PDF document text
    • http://berchmanskuwait.org/uploads/file/51191440304.pdfIn PDF document text
    • http://elmakoleji.k12.tr/public/kcfinder/upload/files/jekonofilunuz.pdfIn PDF document text
    • http://daoltrading.com/userData/board/file/rotoke.pdfIn PDF document text
    • http://kangshi-you.com/uploads/files/202203130311439474.pdfIn PDF document text
    • http://forsheda.se/admin/kcfinder/upload/files/5756712096.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/zifivu.pdfIn PDF document text
    • http://www.oftalmed.com.br/files/ckeditor_custom/kcfinder/upload/files/sebedasarubeledezi.pdfIn PDF document text
    • http://hflbdq.com/uploads/file/13081404765.pdfIn PDF document text
    • http://fireprovietnam.net/luutru/files/difuviziranegizufiwetufo.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/162094dcf51cb7---36196231749.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/162384acf5dfec---48698123862.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00046126.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00046126.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46126 18876 bytes
SHA-256: dd1c2a28f65867d38a45bf4bdfaf32fe35401a0da9c3a4801b603ddf2161e78d
font_01_sfnt_off00049263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49263 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A983 10864 bytes
SHA-256: 178ce869c5cf9b101f1a12a7761939b6551ea63f029b025ae000ce5e749f931f