Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8f3dcba96f9d53…

MALICIOUS

PDF

374.9 KB Created: 2022-03-06 14:54:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: a8ea7f3dd8b1274f2f20943e1394e4a0 SHA-1: f3d96367aa9910dabceb949f84c1d4e494741ff6 SHA-256: cb8f3dcba96f9d53f7d03be709d975ccd3cd1c9bd94c605da1501bd344501876
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6300

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://fundacjaartfreeart.pl/userfiles/file/nimuvedijixupomasumuna.pdf In PDF document text
    • http://apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/waruzubi.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620356c78ff41---fawudexokufitisedabob.pdfIn PDF document text
    • https://pristineleather.com/userfiles/file/46823674567.pdfIn PDF document text
    • https://fa-vietnam.com/webroot/img/files/nozukimutixi.pdfIn PDF document text
    • http://khamtrai.vn/userfiles/file/mamidixodugobikolaximujuf.pdfIn PDF document text
    • https://tivirtual.com/userfiles/file/95967995598.pdfIn PDF document text
    • http://www.dispatchls.com/backend/web/kcfinder/upload/files/13031345381.pdfIn PDF document text
    • http://zulassungsdienst4you.de/bilder/file/tunetibavum.pdfIn PDF document text
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/1433519941.pdfIn PDF document text
    • http://positiveforce.in/uploads/files/nalumalilemetuvozo.pdfIn PDF document text
    • http://vinaktv.com/storage/ckfinder/files/suxuxapamutag.pdfIn PDF document text
    • https://inprovitmexico.com/ckfinder/userfiles/files/8749778246.pdfIn PDF document text
    • http://www.assistvaleur.co.jp/inc/kcfinder/upload/files/79132229819.pdfIn PDF document text
    • http://emanuelarombiarchitetto.eu/userfiles/files/robunimaxifaxasezigebisan.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/dcbde2383f224d751d40cf958a33409c/40060896726.pdfIn PDF document text
    • https://kham.vn/userfiles/file/rozelatexoriduj.pdfIn PDF document text
    • http://www.primariasantana.ro/uploads/file/sofuvuzasu.pdfIn PDF document text
    • http://tmservice.nl/bestanden/files/sovetawagufara.pdfIn PDF document text
    • https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/69056678790.pdfIn PDF document text
    • http://tlumacz-francuskiego.pl/userfiles/file/saxuvezor.pdfIn PDF document text
    • https://advantage.ee/media/contents/file/57823108497.pdfIn PDF document text
    • https://strechybenesov.cz/content/80613296278.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/popolazowawaduxug.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/maromozinifage.pdfIn PDF document text
    • http://usmp.pnl.ac.id/asset/kcfinder/upload/files/zutipelov.pdfIn PDF document text
    • https://888nv.ru/userfiles/file/rebapusil.pdfIn PDF document text
    • http://csc-028.com/userfiles/file/20220220131206_8tgeyf.pdfIn PDF document text
    • http://www.dispatchls.com/backend/web/kcfinder/upload/files/wenogima.pdfIn PDF document text
    • https://cyklo-wellness-penzion-palice.cz/content/vedunazegitevatevasixe.pdfIn PDF document text
    • https://nsaimmigration.com/userfiles/file/rolafavowar.pdfIn PDF document text
    • https://www.fuji-chem.co.jp/admin/js/kcfinder/upload/files/91531141777.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=telepathy+meme+templatePDF 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_off000568bd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000568bd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000568bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568BD 20744 bytes
SHA-256: 49638086db44aaa9cbcd25c02f4a7b36a245051b1c1d572a5227524065b7004d
font_01_sfnt_off00059e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E9E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005b5be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5BE 10008 bytes
SHA-256: bc66965814e144fc110c492969073c7deb7c21046da102d49cdd44fa4bbf6339