Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c7d205f6caa5a2…

MALICIOUS

PDF

322.6 KB Created: 2022-03-20 00:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: df5eedfdb77a16ee960de62fe63b3962 SHA-1: 2ece763d1f2b0136366c9409978f955f000e0d60 SHA-256: c0c7d205f6caa5a2d6ac71b3531735168d521405b2e8d17273a42e862c26ba2c
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7582

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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 http://sergeybazarov.ru/file/22518338857.pdf In PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/24015551929.pdfIn PDF document text
    • http://bmfjhjk.friend-match.com/upload/files/girejavufixesijenagojoni.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/89329184507.pdfIn PDF document text
    • https://bibonatura.com/ckfinder/userfiles/files/xutizel.pdfIn PDF document text
    • http://eamenfaraz.com/cache/fck_files/file/59319111384.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/162226a8f6abd4---32519470198.pdfIn PDF document text
    • https://www.mds-horizons.com/upload/files/fevikupinaxirevedosinawuz.pdfIn PDF document text
    • http://martonaroniskola.net/userfiles/file/58345642016.pdfIn PDF document text
    • https://vejwun.cz/images/sakagubat.pdfIn PDF document text
    • http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/dokexivororigoxogavup.pdfIn PDF document text
    • https://izr.fr/files/pufikad.pdfIn PDF document text
    • http://cgemfoco.com.br/ckfinder/userfiles/files/zufawonixixawedulemoge.pdfIn PDF document text
    • https://506hlapeta.com/files/file/nebuxut.pdfIn PDF document text
    • https://dom4m.de/userfiles/files/8937582229.pdfIn PDF document text
    • http://ambulatorioveterinariosantanna.eu/userfiles/files/37345480898.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/95297256208.pdfIn PDF document text
    • http://yanartekstil.com/firma/files/kazuneregosomavizoni.pdfIn PDF document text
    • http://vanguardhungary.hu/userfiles/file/ledowolilupugemika.pdfIn PDF document text
    • http://cornerstonelaw.eu/userfiles/file/94566013665.pdfIn PDF document text
    • http://xinshifm.com/userfiles/file/donurusogakuwixebug.pdfIn PDF document text
    • http://buafit.bg/Uploads/files/tuxalajorazopapa.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/44672483384.pdfIn PDF document text
    • http://bvphcn.bdata.vn/upload/files/tinimew.pdfIn PDF document text
    • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/92140608923.pdfIn PDF document text
    • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/01e0fde3fb949f55f0433a48463fc59c/nejiwuponipip.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/54510192561.pdfIn PDF document text
    • http://felixefontesadvogados.com.br/ckfinder/userfiles/files/lokodulisofubaso.pdfIn PDF document text
    • https://sinaia-vik.com/admin/fckeditor/editor/filemanager/connectors/php/file/sotebele.pdfIn PDF document text
    • http://adidravidar.com/ckfinder/userfiles/files/zekam.pdfIn PDF document text
    • http://collegium-connect.nl/ckupload/files/bivelud.pdfIn PDF document text
    • http://copy2d.com/ftp/image/file/37063459181.pdfIn PDF document text
    • https://olympicaccessoriesbd.com/assets/ckeditor/kcfinder/upload/files/29043091651.pdfIn PDF document text
    • http://lexuspolymers.com/assets/ckfinder/userfiles/files/feverenojejux.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=calzedonia+costumi+2017+catalogo+pdfPDF link annotation
    • http://sinojjacob.com/userfiles/file/47543220689.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_off00049b79.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049b79.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049b79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49B79 11396 bytes
SHA-256: 4d30fd28c035d2deaaef175d48aa9c144ac5094078b9782fcb8a4431ba1f4a95
font_01_sfnt_off0004b64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B64C 18080 bytes
SHA-256: 6f835ac75770129c4a77c32bc511a00b537d44669278d8a2d54aa42d44f91739
font_02_sfnt_off0004e39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E39E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9