Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcbefbc55adcf43…

MALICIOUS

PDF

250.5 KB Created: 2022-02-01 06:34:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: d65b6b1f246d200bc2ac7ccbf165634a SHA-1: 590ae37348d01a4502b8dd9faff6fd654ccc9f02 SHA-256: 1dcbefbc55adcf43322ef536beb11e59b113aa0651b25761dec2100df9482833
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9373

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://colod.co.za/XSRYdR1H?utm_term=cbi+ka+full+form+kya+hai PDF link annotation
    • http://dermatologomiguelgallego.com/miguel/fck/file/20682979752.pdfIn PDF document text
    • https://laundrybyconrads.com/nbloom/fckuploads/file/63630795092.pdfIn PDF document text
    • http://zavodmdu.ru/userfiles/files/lemiliwi.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/bosugufatizofatokuzira.pdfIn PDF document text
    • http://sooclose.eu/upload/File/30948786792.pdfIn PDF document text
    • http://hayfidan.com/admin/kcfinder/upload/files/razisepibe.pdfIn PDF document text
    • http://erpos.sk/data/files/vigovanixawuzemerufig.pdfIn PDF document text
    • https://fototipia.hu/files/files/49383752792.pdfIn PDF document text
    • http://campfirewtx.org/userfiles/file/88983098800.pdfIn PDF document text
    • http://lignumweb.com/site/webroot/uploads/files/92547059187.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1636468139_4875c9fcf8.pdfIn PDF document text
    • http://tetraeng.it/userfiles/files/bejinobejuxam.pdfIn PDF document text
    • http://maskaevlawyer.ru/userfiles/file/tonixiwuvadizike.pdfIn PDF document text
    • http://yearbookplus.com/uploads/ckfinder/files/24687266912.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/75d3397f4336cd8821582dbcd3fac4aa/31691847161.pdfIn PDF document text
    • http://the100voicesofgospel.ch/fichiers/newsletter/file/jakoxatufonikuri.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00038074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38074 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00039718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39718 10452 bytes
SHA-256: 8335ed75de152093ece17174db1105d9bd2e320fa6c0bc2e2711634f22f4ce1f
font_02_sfnt_off0003aecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AECC 16732 bytes
SHA-256: c0f3c17194ff32aa31c8080025ac7063d8a3248063d4e8407d76cf47a9d05a37