Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d5dbb6a7e8d19a…

MALICIOUS

PDF

331.6 KB Created: 2022-01-31 09:52:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 3982f1a8d923f719f0a035827ffcb838 SHA-1: e30bc8459b37bda5a0b2b12848b86a12c123fcd2 SHA-256: c5d5dbb6a7e8d19aa22b2b7dea6bd788bd5d7816add54542a7c43663493e9d7a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7303

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://loheb.co.za/XSRYdR1H?utm_term=consonant+vowel+blends+worksheets PDF link annotation
    • http://surtek.biz/image/files/20150412_012231.pdfIn PDF document text
    • http://vevo.keresztessyoptika.hu/elemek/file/lason.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/dapovularituxapetuwem.pdfIn PDF document text
    • http://ty-universe.com/image/files/20220119_115618.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/napibilorikok.pdfIn PDF document text
    • http://zezoalza.com/ckupload/files/latiwepitax.pdfIn PDF document text
    • http://maszyny.pl/userfiles/file/14616315499.pdfIn PDF document text
    • http://abimobiliare.pl/pliki/File/35644717294.pdfIn PDF document text
    • http://phamtrangia.com/upload/files/bibuwonifig.pdfIn PDF document text
    • http://bahtiyardishekimi.com/fckfiles/file/foriv.pdfIn PDF document text
    • http://obedovice.cz/userfiles/file/17810573758.pdfIn PDF document text
    • https://nusantarabet4d2.com/contents/files/35983495544.pdfIn PDF document text
    • http://nguyenphat.com/public/default/ckeditor/files/wulunajerelipuwepoporikol.pdfIn PDF document text
    • https://ddtoyz.com/ckfinder/userfiles/files/kofulowukumatuxovosulek.pdfIn PDF document text
    • http://slkuang.com/v15/Upload/file/2021101555401690.pdfIn PDF document text
    • https://yar-net.ru/userfiles/file/disusinimiwesexajuxune.pdfIn PDF document text
    • http://xn--elementy-zczne-kwb98g.pl/media/file/zedegerigofiwubulokinan.pdfIn PDF document text
    • http://kiavysocina.cz/UserFiles/File/86898745794.pdfIn PDF document text
    • https://lyonsinn.com/nbloom/fckuploads/file/57620670982.pdfIn PDF document text
    • http://pawsandtiaras.com/ckfinder/userfiles/files/93155930345.pdfIn PDF document text
    • https://fetogram.com/images/upload/files/39322037147.pdfIn PDF document text
    • https://feldmann-spedition.de/pics/userfiles/file/xagigulosexurumopurojos.pdfIn PDF document text
    • http://belloverde.net/emailer/file/31832114855.pdfIn PDF document text
    • https://parfumzone.ro/files/file/gununikizuzi.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_off0004c3d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3D8 10668 bytes
SHA-256: e2c7fdc69183fbcda0d57d6e1ca323dad998ff495f92100c75dfd286a24b16f0
font_01_sfnt_off0004dc55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC55 17056 bytes
SHA-256: f0ea318af97c9df5e2be0e6d70d5910cd48969708b3b0e39396e6f2bd37291c1
font_02_sfnt_off0005088a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5088A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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