Malicious PDF — malware analysis report

Static analysis result for SHA-256 552bcafde3ee0ead…

MALICIOUS

PDF

88.1 KB Created: 2022-04-05 00:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 40ec6a719eb9491ec8ccde63013ebf22 SHA-1: b84017b91c7eab367610de934d4e17cecc01ef34 SHA-256: 552bcafde3ee0ead9a2831699964eb7e5c2eb6229acacb5b19f4b7d8b84bcd70
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://tevav.co.za/YmrXLWy8?keyword=constitucion%20mexicana%20articulo%2041 PDF link annotation
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f40cf0ac93---79695819113.pdfIn PDF document text
    • https://x-art-limited.com/webroot/editor-uploads/files/jabatupuferitenoxup.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/77857581609.pdfIn PDF document text
    • https://judewefa.weebly.com/uploads/1/3/4/6/134652715/0bf302c.pdfIn PDF document text
    • http://licausi.it/userfiles/files/wezinozaroli.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/54418902029.pdfIn PDF document text
    • https://danegatazi.weebly.com/uploads/1/3/0/7/130776269/dc6d27c33ae42.pdfIn PDF document text
    • https://deselutinewim.weebly.com/uploads/1/4/1/2/141255825/bezokemajemule.pdfIn PDF document text
    • https://kawanmto.net/contents/files/99468459.pdfIn PDF document text
    • https://sunivisoxeban.weebly.com/uploads/1/3/4/4/134493344/sofugiviboxoxo-mizepefaturi.pdfIn PDF document text
    • http://marisqueandopremios.com/campannas/file/pefijarusolawexuzur.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/bulotuvora.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/zexulisiboj.pdfIn PDF document text
    • https://pekeweluxema.weebly.com/uploads/1/3/5/3/135304067/a4cd3888eaa25.pdfIn PDF document text
    • https://nolipugi.weebly.com/uploads/1/3/4/6/134652161/c1402.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/38212464927.pdfIn PDF document text
    • https://xixivejeb.weebly.com/uploads/1/3/4/6/134603549/3536113.pdfIn PDF document text
    • https://tafanoxuxirugo.weebly.com/uploads/1/3/5/3/135327873/fapuvo.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620856e36905a---48413123827.pdfIn PDF document text
    • https://www.ewdel.cz/ckfinder/userfiles/files/88626303982.pdfIn PDF document text
    • https://repare-ton-smartphone.com/userfiles/file/68083360250.pdfIn PDF document text
    • https://wozedekasejop.weebly.com/uploads/1/3/4/7/134703393/deninedifimovinow.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_off0000f423.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f423.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF423 17040 bytes
SHA-256: cd166e794a417a1304139b29b1602d6d027f28dd6942da92ed9f386e296ba126
font_01_sfnt_off00011f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F20 10756 bytes
SHA-256: e8cb831fd5c78ca40d139a5a389b41fb2e628dc459f6d86829d94e32cebc673e
font_02_sfnt_off00013801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13801 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1