Malicious PDF — malware analysis report

Static analysis result for SHA-256 25863cd901daf53e…

MALICIOUS

PDF

607.5 KB Created: 2022-03-03 16:54:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 1ea216c4cb125b614f717bfbd125517b SHA-1: a7bc635224bff5c73ca73278acd87f4132cb1ba5 SHA-256: 25863cd901daf53eae45ec8ed4c56f8c102bdcdabcad8b59f724c8524f4727b0
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3091

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 http://ventima.ru/userfiles/file/sutolowatiw.pdf In PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/jepemabegavobavesipa.pdfIn PDF document text
    • https://greenfins-thailand.org/uploads/file/84464017301.pdfIn PDF document text
    • https://anpheatingandac.net/nbloom/fckuploads/file/pogegogegiloxesokirokij.pdfIn PDF document text
    • http://bugaboo-buffalo.eu/UserFiles/File/jizebazidezi.pdfIn PDF document text
    • https://wildarium.com/ckfinder/userfiles/files/72480342654.pdfIn PDF document text
    • https://songod.vn/uploads/image/files/19684037247.pdfIn PDF document text
    • https://medpressa.ru/files/file/33743673384.pdfIn PDF document text
    • https://gdaniec.com/upload/files/zenuvasepebev.pdfIn PDF document text
    • http://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/55253073289.pdfIn PDF document text
    • http://seed-hongkong.com/uploads/file/zowepiwakebomevixikupibo.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/162056d7930c01---ligelelamem.pdfIn PDF document text
    • https://schneider-rozetki.ru/kcfinder/upload/files/foxaz.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16210bd0f9cdb1---15830807368.pdfIn PDF document text
    • http://pb-book.com/user_file/file/38592929343.pdfIn PDF document text
    • http://7treehotel.com/userfiles/file/83735227556.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/pesopupumixunadul.pdfIn PDF document text
    • http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/mutomivezugapo.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/kapisijoki.pdfIn PDF document text
    • http://caratow.eu/userfiles/file/ferodarez.pdfIn PDF document text
    • http://zzfcw.com/file/fkimg/file/63922657669.pdfIn PDF document text
    • http://westfallassociates.com/documents/file/milevutifirulewazer.pdfIn PDF document text
    • http://steinemann-ag.ru/90617824449.pdfIn PDF document text
    • http://a899.net/userfiles/file/pinemutigilibeti.pdfIn PDF document text
    • http://intelibud.net/media/files_manager/files/womuwiritibopozowu.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=hypertrophic+cardiomyopathy+guidelinePDF link annotation
    • 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_off0009149b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0009149b.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0009149b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9149B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00092bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92BBB 10996 bytes
SHA-256: 867cc175785a2c9f0064cec311f4f537df26500eab9d45d8496a112ceba17371
font_02_sfnt_off000944d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x944D6 16192 bytes
SHA-256: 4b9a07179d0b9270d1467fc7d729266871ceebbcc72a5c9841f6ea1adb917b98

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