Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a1f66a97f4cd56…

MALICIOUS

PDF

579.2 KB Created: 2022-04-07 10:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 82fdbb977d5f8fa78493a15c901db9f7 SHA-1: b0f9f97302d58a1c84d3782d509df84063fc1d1a SHA-256: 18a1f66a97f4cd56593d0aabbb26c2a2d1bb0222db45b542f662dfe1edaa5169
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4225

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
  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=ielts+writing+band+7+sample+pdf PDF link annotation
    • https://kexezesokofu.weebly.com/uploads/1/3/3/9/133986719/6a109a8585ae319.pdfIn PDF document text
    • https://htkvn.vn/public/admin/plugins/kcfinder/upload/files/69659734990.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/3962dee1b1cf207a92bf384b5aad1285/39811878724.pdfIn PDF document text
    • https://nobibiraxofos.weebly.com/uploads/1/3/4/9/134904538/gepifeduriwa.pdfIn PDF document text
    • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/e99b4ee25ff5f3a06aa460a3feb56a48/2153277526.pdfIn PDF document text
    • https://degovemidim.weebly.com/uploads/1/3/4/0/134017519/kagejuzu.pdfIn PDF document text
    • https://nimudizovif.weebly.com/uploads/1/3/4/4/134478886/6791901.pdfIn PDF document text
    • https://kujofajatoniw.weebly.com/uploads/1/3/1/4/131406813/mizijepa_kepedojebizenok_wogixo_fusezivu.pdfIn PDF document text
    • https://jovasesuba.weebly.com/uploads/1/3/4/3/134332727/6090806.pdfIn PDF document text
    • https://burgas-remonti.com/userfiles/file/18413835335.pdfIn PDF document text
    • http://sperrincaravans.com/images/file/25409229047.pdfIn PDF document text
    • https://xaxusadusu.weebly.com/uploads/1/3/4/4/134497069/zebuketasijuxidu.pdfIn PDF document text
    • https://www.crosstownnews.in/kcfinder/upload/files/37157569553.pdfIn PDF document text
    • https://bowukobi.weebly.com/uploads/1/3/4/7/134706413/valoxuvigo.pdfIn PDF document text
    • https://vudeberas.weebly.com/uploads/1/3/3/9/133997553/1b9911.pdfIn PDF document text
    • https://foluxodemebomo.weebly.com/uploads/1/3/0/7/130739593/9918458.pdfIn PDF document text
    • https://pajapuzewufivu.weebly.com/uploads/1/3/5/3/135305216/memon.pdfIn PDF document text
    • https://natemavobu.weebly.com/uploads/1/3/4/3/134349428/2435244.pdfIn PDF document text
    • https://xiwulugizasu.weebly.com/uploads/1/3/2/7/132741433/mozafenuva-jebuwokefararaw-zifodetoxog-xonakovek.pdfIn PDF document text
    • http://mindentudor.hu/userfiles/file/48032614064.pdfIn PDF document text
    • http://sevenseahotel.com/uploads/images/files/12105356893.pdfIn PDF document text
    • https://pudosibax.weebly.com/uploads/1/3/5/9/135964381/5155686.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_off00089fe3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00089fe3.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00089fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0008b7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7FA 10948 bytes
SHA-256: d1c301c7d857af513608e0636451e8e1d9f0c050caffda8add5bb298aa48cb07
font_02_sfnt_off0008d101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D101 17336 bytes
SHA-256: 04d67fdb3aa9c357c476a7931ce1d0d7e224a346ab0599f663bbb2d259a75154

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