Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8587dbb072bdcd…

MALICIOUS

PDF

452.9 KB Created: 2022-03-05 06:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 4052b55509cdbb9d975b68af3083eaed SHA-1: a63785dd3aa056dfe7775f509eb7f04dd8dc3b3b SHA-256: cb8587dbb072bdcdf5e481b605808d7426202fd08f74d9268d03bd08cf4b2ee2
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4959

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://lazav.co.za/XSRYdR1H?utm_term=detailed+technical+design+document+template PDF link annotation
    • https://test-ajpianos.lapetitemaisonduweb.fr/upload/files/98670698199.pdfIn PDF document text
    • https://stin-verdon.fr/assets/Image/files/99336292216.pdfIn PDF document text
    • http://smartmoverecords.com/india/images/file/16378192213.pdfIn PDF document text
    • http://myshopgroup.com/userfiles/files/2370545775.pdfIn PDF document text
    • https://schmitz.cz/res/file/32710893929.pdfIn PDF document text
    • http://lixupeng.com/uploads/files/49438433364.pdfIn PDF document text
    • http://aleksey-mihalchik.ru/upload/files/remevotegu.pdfIn PDF document text
    • https://michalheger.cz/soubory/files/nukobomavafajamadiju.pdfIn PDF document text
    • http://iuf.kr/pds_down/files/77822038603.pdfIn PDF document text
    • https://vos-web.nl/userfiles/file/rekuxijavuvalezo.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/54838617035.pdfIn PDF document text
    • https://zibarajabi.com/cache/fck_files/file/68534687527.pdfIn PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20220303105630.pdfIn PDF document text
    • http://residencecarlofelice.com/userfiles/files/rajonadinovalipevixupozet.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/411d611e20cb0c1a5e4e3c17ee2c38c0/77011489612.pdfIn PDF document text
    • http://davostravel.com/upload/files/23886830577.pdfIn PDF document text
    • https://prolinenergy.com/Admin/plugins/ckeditor/kcfinder/upload/files/87041526711.pdfIn PDF document text
    • http://association-femmes-relais-aulnay.communication-pro.fr/public/1160/contenu/file/duvikak.pdfIn PDF document text
    • http://tua-hatextiles.com/assets/ckeditor/kcfinder/upload/files/77678005578.pdfIn PDF document text
    • http://administracja.iptourism.com/UserFiles/File/lixuxisofawavegipisotaga.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2022-3-4/20220304055407205108.pdfIn PDF document text
    • http://zzlhlt.com/userfiles/file/LianMeng202202061912108982.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/45998992910.pdfIn PDF document text
    • http://nanchiatw.com/userfiles/file/gusewujimurebuk.pdfIn PDF document text
    • https://grandecentrepointhotels.com/upload/file/45049108956.pdfIn PDF document text
    • http://pinxedien.net/upload/files/wipadu.pdfIn PDF document text
    • https://motecx.com/images/file/67924970416.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/5c7692e1b2c9ce02c8e9e0dbc2db024d/bomabefejud.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_off0006a20a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006a20a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006a20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A20A 10964 bytes
SHA-256: 103a9beea4c061e61207ed0f748ed49bc43cd57ed01a00796b30a1e55fe297e7
font_01_sfnt_off0006bb0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB0E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006d229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D229 19012 bytes
SHA-256: d8968dde1be8453be1bb9de5e4d9decaae72cf285ce987acdcc4cfc32d8d6464