Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf4b086104ff30e…

MALICIOUS

PDF

227.6 KB Created: 2022-03-24 23:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 7cc053636a7bb4ca5548ef12af6593e0 SHA-1: 4afcb9196d88964e1a9fe18d4307978a0861a564 SHA-256: ccf4b086104ff30e9651f336a837cc7e03bd05c453675962d65c03b13519bddb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9727

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://lovig.co.za/XSRYdR1H?utm_term=pokemon+tower+defense+2+unblocked PDF link annotation
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16209848e774d3---jowidixole.pdfIn PDF document text
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/babb9d014c130474e2f9d7668d03ba63/2711284189.pdfIn PDF document text
    • http://poltinik.ru/userfiles/file/vejezojizimavigepowigobov.pdfIn PDF document text
    • https://agencement-menuiserie-var.fr/stockages/files/85791337048.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/wagakazamonabipefukojewu.pdfIn PDF document text
    • http://kaoli88.com/upload_fck/file/2022-2-14/20220214142112751964.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/zimumupogidos.pdfIn PDF document text
    • https://funstore.dialog.org/userfiles/file/pofumovume.pdfIn PDF document text
    • http://ltptech.vn/uploads/userfiles/file/kibiduw.pdfIn PDF document text
    • http://celyroknaterase.sk/editor_uploads/system/files/subixa.pdfIn PDF document text
    • https://my-natural-style.net/upload/files/ponoxesenotudo.pdfIn PDF document text
    • http://plncse.hu/php_data/file/79839907593.pdfIn PDF document text
    • http://lhdrum.com/User_File/UpFile/file/20220310002256_ODgwMTkwODQ2NDM=.pdfIn PDF document text
    • https://cserepakciok.hu/xdata/file/mivowurebubifobexu.pdfIn PDF document text
    • http://the100voicesofgospel.de/fichiers/newsletter/file/89569852896.pdfIn PDF document text
    • https://aildf.in/userfiles/file/72321945848.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/13293899420.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_off00031f6d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031f6d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F6D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003368d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3368D 10920 bytes
SHA-256: 20d0739e9255e1ad3b84b711cbcd6ceef4dfb7986bcff99489a549bad77285eb
font_02_sfnt_off00035000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35000 18520 bytes
SHA-256: 27e34a8492835ea01f6d361b3f2e78738c9a8596de22003eb3b6b8e063a05f09