Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8beb51eef35c3aa…

MALICIOUS

PDF

77.4 KB Created: 2022-03-30 20:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 2f0e31b84815da200e964d29b64c0a2f SHA-1: 185853b1c39a58f302361b587453bdff7e79b441 SHA-256: a8beb51eef35c3aac3605893f0017e82261cde223773f1071822fc28ccb8d2e1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 http://ziraddin.ru/kcfinder/upload/files/fesuwowadigakevik.pdf In PDF document text
    • https://mufejuraziga.weebly.com/uploads/1/3/0/8/130814984/431b9.pdfIn PDF document text
    • https://dhrc.in/userfiles/file/30234571545.pdfIn PDF document text
    • https://mufepubawitig.weebly.com/uploads/1/3/4/6/134614790/1357068.pdfIn PDF document text
    • http://gzcaifeilai.com/ckfinder/userfiles/files/202202250620254078.pdfIn PDF document text
    • https://inoxquochoang.com/app/webroot/files/images/pages/files/lexojovudinajufinizegori.pdfIn PDF document text
    • https://kozezivu.weebly.com/uploads/1/3/4/4/134444222/5522322.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/56754944964.pdfIn PDF document text
    • https://xomakasus.weebly.com/uploads/1/3/4/6/134696708/1d2e849b49.pdfIn PDF document text
    • http://arkapizzeria.com/kcfinder/upload/files/vamakogiduvamax.pdfIn PDF document text
    • https://firajapototirop.weebly.com/uploads/1/3/1/4/131452771/dc04ed57f0677.pdfIn PDF document text
    • https://muzifadisuluso.weebly.com/uploads/1/3/5/3/135347683/fifivosovotepidad.pdfIn PDF document text
    • https://www.profiexpo.ru/js/kcfinder/upload/files/lokinu.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16235c3487320d---pogexatodalalokudanowagu.pdfIn PDF document text
    • https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/kepezepuwimuvojisojuxi.pdfIn PDF document text
    • https://montferri.com/admin/js/plugins/kcfinder/upload/files/73083190301.pdfIn PDF document text
    • https://xuvevajepew.weebly.com/uploads/1/3/0/7/130739459/2065814.pdfIn PDF document text
    • https://hn-as.dk/sites/default/files/userfiles/file/pevibunekirafijusob.pdfIn PDF document text
    • https://mosaminaworite.weebly.com/uploads/1/3/1/6/131636744/2193850.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=dewalt%20dw%2020v%20max%20lithium%20ion%20compact%20drill/driver%20kitPDF 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_off0000c63b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c63b.bin)

Related samples 2

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_off0000c63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC63B 11336 bytes
SHA-256: eca4cf778c8b96656cc1b98cb19c072bbed616f62916215085235b3a918cd0ab
font_01_sfnt_off0000e0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF776 17512 bytes
SHA-256: 207212cc71578e90fa22dd0c9da2792faf34d5f90e41897e0fa0e9ae5a316872

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