Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca67a7c724eebbb3…

MALICIOUS

PDF

77.5 KB Created: 2022-04-02 12:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 0f391bb83dddcfd832187f5f9c00cc8b SHA-1: b8f6590349e8b0eb2a1f4156c7f62cc5cf030bf4 SHA-256: ca67a7c724eebbb34a0d4850d2d53e8cfe9dd4db7471c695889c0b0bcbec3040
146 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ciudadaniadesdeelaula.com/kcfinder/upload/files/semudevarugum.pdf In PDF document text
    • https://hhwholesaleclub.com/admin/kcfinder/upload/files/95431224832.pdfIn PDF document text
    • https://revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621dc970d464e---13431282838.pdfIn PDF document text
    • https://www.maniocenter.com/imagenes/editor/file/rofulirus.pdfIn PDF document text
    • https://fong-cai.com/upload/files/sotodomajaju.pdfIn PDF document text
    • https://wadamosemexijep.weebly.com/uploads/1/3/4/4/134434227/7120091.pdfIn PDF document text
    • http://soundspace.eu/Upload/file/52014121195.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2022-2-28/20220228092001158397.pdfIn PDF document text
    • http://nhanvietgroup.com/demo/xay-dung-tnx/upload/files/69252557353.pdfIn PDF document text
    • https://sabagdasarov.ru/upload/file/webozapawolupiluv.pdfIn PDF document text
    • https://sipesavuw.weebly.com/uploads/1/3/4/6/134697333/jaleginiride.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/91523651549.pdfIn PDF document text
    • http://www.cda.org.hk/ckfinder/userfiles/files/sewudazejadadisa.pdfIn PDF document text
    • http://parcroyale.hk/userfiles/biwoloxenumiresan.pdfIn PDF document text
    • https://jifujutikawe.weebly.com/uploads/1/3/5/3/135328504/4357771.pdfIn PDF document text
    • https://motadonikedubi.weebly.com/uploads/1/3/1/8/131856170/8905695.pdfIn PDF document text
    • https://mclandpin.com/calisma2/files/uploads/52737134828.pdfIn PDF document text
    • http://kahounova.cz/userfiles/file/43692594461.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=kitchenaid%20mixer%20model%20k45ss%20owners%20manualPDF 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_off0000c716.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c716.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC716 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000df2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2D 11220 bytes
SHA-256: f90103235dc0b7bf78c46bf9fa835c9b495498ee4921b7b3fed8503846cdffc4
font_02_sfnt_off0000f962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF962 17472 bytes
SHA-256: 15b97883aa9ae9f1a8e915a4f2f434fbb309121a76424e326ac012b859fdfdb5