Malicious PDF — malware analysis report

Static analysis result for SHA-256 441701309f19dada…

MALICIOUS

PDF

110.5 KB Created: 2021-10-11 17:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 7c63e66e3094958500dac99e31e44402 SHA-1: c89efd2df47c74e08a19ecc3437d23f0b870dfc3 SHA-256: 441701309f19dada7c0af03d46c29116fc72a8b412b6f824d06ea9e8e2857fcb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 http://ecohort.com/userfiles/files/3559861290.pdf In PDF document text
    • http://www.ags-sib.ru/ckfinder/userfiles/files/39202106332.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/donasugobetuw.pdfIn PDF document text
    • http://ninda.vn/userfiles/files/jirojosisavawix.pdfIn PDF document text
    • http://autovoda.ru/upload/files/37386371563.pdfIn PDF document text
    • http://machulski.com/public/file/kebiwegusomapomomobimatos.pdfIn PDF document text
    • http://tunglamgarden.com/images/fck/file/7755055588.pdfIn PDF document text
    • https://senegal4d.com/contents/files/gozetenan.pdfIn PDF document text
    • http://zaiger.ru/img/file/bonoxepeze.pdfIn PDF document text
    • http://www.kotolantopeni.cz/files/52842830493.pdfIn PDF document text
    • http://oppedisanorobertosrl.com/userfiles/files/23760070862.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a6e38d0284---tabokoledegetofimali.pdfIn PDF document text
    • http://one9five.com/userfiles/files/20811099204.pdfIn PDF document text
    • http://www.gulbaharsigorta.com/contentData/file/sivatovipekufilivedim.pdfIn PDF document text
    • http://lifecare4all.com/upload/files/fedokogipikig.pdfIn PDF document text
    • https://opescom-store.com/uploads/FCK_files/file/50072310283.pdfIn PDF document text
    • http://agisma.ru/files/pages/files/99162560197.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/7bfe1d5d7b64f63b664fe26a086167a5/nitamajomodupikimafat.pdfIn PDF document text
    • https://cructi.ru/uplcv?utm_term=scripture+his+mercy+is+new+every+morningPDF link annotation
    • http://tubietelbar.hu/uploadfile/fabaxi.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_off00013eef.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00013eef.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EEF 23656 bytes
SHA-256: b9440e6c1612950758bab6f65a0176f32b4f1576cc65a9a7e3272d61ac50e636
font_01_sfnt_off00017a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17A75 11052 bytes
SHA-256: fa19889da80bd3288362f4fcfd17dc9c76480ed92c8bde4cf52d303944225d55
font_02_sfnt_off0001941f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1941F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1