Malicious PDF — malware analysis report

Static analysis result for SHA-256 af28f08ec5e117be…

MALICIOUS

PDF

79.3 KB Created: 2022-04-27 11:36:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 0a5868ebf4424a93a28d6893af021fe3 SHA-1: 579f2534d71d7f89da9398fe21358ec7b753256e SHA-256: af28f08ec5e117bebce77104e8a406d83d5fce4883bd493a346e75327316b9b1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://cafij.co.za/YmrXLWy8?keyword=6th%20class%20maths%20book%20pdf%20state%20syllabus PDF link annotation
    • https://bavamelamasol.weebly.com/uploads/1/3/4/7/134714994/4495653.pdfIn PDF document text
    • https://residencialparquenorte.es/kcfinder/upload/images/files/69721343592.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/643b5e389bf9393cbc3caf5ece891dc7/jabafotozezonukide.pdfIn PDF document text
    • http://danielstrehlau.com/userfiles/file/gidenuvu.pdfIn PDF document text
    • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/3474256985.pdfIn PDF document text
    • http://xn--3e0b556bhrbowi6undva.com/ckupload/files/47222531689.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/20224252312239678.pdfIn PDF document text
    • https://pefesasorib.weebly.com/uploads/1/3/5/9/135972127/jeforelidesujad_fabifajed.pdfIn PDF document text
    • http://www.jfac.kr/ckfinder/userfiles/files/demigawulan.pdfIn PDF document text
    • http://lilcash.com/ckfinder/userfiles/files/nozixamaxoj.pdfIn PDF document text
    • http://crm333.com/documentos/file/58232060982.pdfIn PDF document text
    • http://dogable.de/userfiles/file/marejozesurudeder.pdfIn PDF document text
    • https://xedulichhaiphong.vn/images/news/files/derulevim.pdfIn PDF document text
    • https://sogutujugaj.weebly.com/uploads/1/3/4/4/134403955/6020732.pdfIn PDF document text
    • https://lidawutoroliv.weebly.com/uploads/1/3/1/8/131872032/sajunejewe.pdfIn PDF document text
    • http://www.cenlajobinator.com/siteuploads/editorimg/file/ludodavurofotitapadowu.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_off0000d132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD132 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE949 11104 bytes
SHA-256: 6a985181af32032e19e68f3f9daaac64c52e38cbf092e47f71d76845daa4a307
font_02_sfnt_off0001030f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030F 16776 bytes
SHA-256: 7dd1900717d4f1335433e1c9936cf6110ae2ac3d622ad0c2efb6c11f37c80b10