Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7f9fbe07cf1253…

MALICIOUS

PDF

81.5 KB Created: 2022-04-03 09:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 500993bb8657d40ba06ae0c43ec39785 SHA-1: 3cd0bc3d2b0d6cb14783890e208e2fb3ed34f509 SHA-256: cd7f9fbe07cf125385052eb5fcf2f1715841511b892e84098afa5bd13db48bb5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://colod.co.za/YmrXLWy8?keyword=why%20students%20don PDF link annotation
    • https://fapixuguxoga.weebly.com/uploads/1/3/1/0/131070829/c0b5c061abae13e.pdfIn PDF document text
    • http://groupementpecheduloir.com/ckfinder/userfiles/files/95194476355.pdfIn PDF document text
    • https://xopubuniwanofu.weebly.com/uploads/1/3/4/1/134131716/zulipevogeruselefa.pdfIn PDF document text
    • https://dawewixorumerix.weebly.com/uploads/1/3/4/6/134633471/mujodomojezefi-molejeluru-ziriwadex.pdfIn PDF document text
    • https://dijatetobof.weebly.com/uploads/1/3/4/3/134322453/duden.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/2977150.pdfIn PDF document text
    • https://vadunidiv.weebly.com/uploads/1/3/4/4/134464125/9b33f9.pdfIn PDF document text
    • https://zosujugopaw.weebly.com/uploads/1/3/4/5/134509911/946ca033.pdfIn PDF document text
    • http://mygofo.com/ckfinder/userfiles/files/rizuletutobubozud.pdfIn PDF document text
    • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/jozapuka.pdfIn PDF document text
    • https://domigatozod.weebly.com/uploads/1/3/4/7/134717876/f9651422ffb96b.pdfIn PDF document text
    • https://napuraviseso.weebly.com/uploads/1/3/4/3/134322211/dujapogabetafepuxur.pdfIn PDF document text
    • https://gotagifegu.weebly.com/uploads/1/3/1/6/131607164/b8040a3e.pdfIn PDF document text
    • https://givenuwijuzi.weebly.com/uploads/1/3/4/4/134445792/jobirubogukunob_zavofed.pdfIn PDF document text
    • https://mexukisigugat.weebly.com/uploads/1/3/4/7/134702857/noxifowakun.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620cb444794e9---40742296231.pdfIn PDF document text
    • https://nijupafubowawiz.weebly.com/uploads/1/3/4/0/134012726/dekitofegonos.pdfIn PDF document text
    • https://wexikapej.weebly.com/uploads/1/3/0/8/130874413/wibibogonutiz.pdfIn PDF document text
    • https://panalito.weebly.com/uploads/1/3/2/6/132695280/5157297.pdfIn PDF document text
    • http://moscowcharm.com/content/xuploadimages/file/28397885002.pdfIn PDF document text
    • http://grk.rigel-regensburg.de/upload/files/19032834488.pdfIn PDF document text
    • https://lefaxujil.weebly.com/uploads/1/3/0/7/130739779/90e48f7a675.pdfIn PDF document text
    • http://senvietsystem.com/ckeditor/upload/files/bakaz.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD830 10912 bytes
SHA-256: 7c98ecdd42c9c6d5a4863cc157e0d35de4d1c9b1ac08bda01418b8d83a2c813f
font_01_sfnt_off0000f151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF151 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10963 17596 bytes
SHA-256: 83ae870a44f2c432c248aafdbbbb99a1993c649ec22420cf9b9a97e7680285dd

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