Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cff4bfa43b6088…

MALICIOUS

PDF

79.0 KB Created: 2022-04-07 18:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-27
MD5: 6bf9d1dbee8b423b8868b70ed9633572 SHA-1: 5b2e926c22e1c685c48cb501745fe54d07886178 SHA-256: e7cff4bfa43b6088080cefbf4611c894df78f46c1194d41b3f1b0f5cfc5b86a3
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/YmrXLWy8?keyword=how%20to%20prep%20for%20florida%20real%20estate%20exam PDF link annotation
    • http://veterina-hrib.cz/user-uploads/files/68182034315.pdfIn PDF document text
    • https://japifopegukev.weebly.com/uploads/1/3/5/9/135975580/3945908.pdfIn PDF document text
    • http://kamkmori.cz/ckfinder/userfiles/files/449643090.pdfIn PDF document text
    • https://kepevexin.weebly.com/uploads/1/3/4/2/134234606/jituzozipi.pdfIn PDF document text
    • https://vixevugipun.weebly.com/uploads/1/3/5/3/135327752/zakixezupor-powuvoxaja.pdfIn PDF document text
    • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/2978f1e3d6624684de12df2518cdf858/45707978452.pdfIn PDF document text
    • https://boliwarabinobe.weebly.com/uploads/1/3/1/4/131437394/a05b21e.pdfIn PDF document text
    • https://askisan.com/upload/ckfinder/files/15503495299.pdfIn PDF document text
    • https://lixazasowab.weebly.com/uploads/1/3/4/5/134588429/jipunogoferebebaw.pdfIn PDF document text
    • https://susenuvow.weebly.com/uploads/1/3/4/8/134883676/namezulo_bapazup.pdfIn PDF document text
    • https://jelalepoxona.weebly.com/uploads/1/3/4/9/134901657/6053136.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/67707139334.pdfIn PDF document text
    • https://kikoxelila.weebly.com/uploads/1/3/4/3/134335894/bd205e784319e.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/92471380366.pdfIn PDF document text
    • https://dowawanezezezo.weebly.com/uploads/1/3/1/0/131070762/wuxilepasoxakil_makuzosoka.pdfIn PDF document text
    • https://bajkolandia.halpress.eu/userfiles/file/tupusarivujo.pdfIn PDF document text
    • https://biharlokmanch.org/userfiles/file/53462597148.pdfIn PDF document text
    • http://ferrocom-spb.ru/userfiles/files/wilituw.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_off0000cd90.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cd90.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD90 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A2 17736 bytes
SHA-256: 4fa8c2e1af781c887fbc468898a6b68ca4118d5b30a4f1a896d2957df79bc46d
font_02_sfnt_off0001143f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1143F 10732 bytes
SHA-256: 39e0f796fadd91ec932827bdead61e3789a94cfdec89ac8f9c2330b22ba19ed6