Malicious PDF — malware analysis report

Static analysis result for SHA-256 1913d21e6bb88ebe…

MALICIOUS

PDF

77.8 KB Created: 2022-04-08 03:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 9c2078ae3c530b3aa992d0270b682964 SHA-1: 24be683f06d753ca6093a0d3f6e2e56f6010874c SHA-256: 1913d21e6bb88ebe8ef15499e3dc55b7074b9aa4f8d202ef2e2b066b7e069f77
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 https://mifuj.co.za/YmrXLWy8?keyword=how%20many%20calories%20in%20a%20grande%20iced%20matcha%20latte%20with%20almond%20milk PDF link annotation
    • http://liga-stf.ru/i/upload/files/kizizeluvafobiko.pdfIn PDF document text
    • https://duxebiforup.weebly.com/uploads/1/3/4/0/134013009/2674e2.pdfIn PDF document text
    • http://geologocarmignani.com/userfiles/files/fanijosawarozudulat.pdfIn PDF document text
    • https://dekoluzoben.weebly.com/uploads/1/3/4/4/134472937/5dd265a7705.pdfIn PDF document text
    • https://chambres-hotes-aube-bleue.fr/userfiles/file/baxifakolajibifivolirone.pdfIn PDF document text
    • https://peziwotikiju.weebly.com/uploads/1/3/4/6/134602895/3932175.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202203270258592309.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/wezolubibukik.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/tapesirojidiweladus.pdfIn PDF document text
    • https://bodonovovo.weebly.com/uploads/1/3/1/6/131607174/428b8db87c58.pdfIn PDF document text
    • https://bematurom.weebly.com/uploads/1/3/4/8/134886193/nesede_guzoki.pdfIn PDF document text
    • https://jusatupu.weebly.com/uploads/1/3/4/6/134652681/milaxov.pdfIn PDF document text
    • https://jimutovila.weebly.com/uploads/1/3/1/8/131856698/pefakujuni.pdfIn PDF document text
    • https://bisuduroj.weebly.com/uploads/1/3/4/7/134714880/xedupa.pdfIn PDF document text
    • http://balone.net/_upload/file///resodoruxejid.pdfIn PDF document text
    • https://rubavuwo.weebly.com/uploads/1/3/4/4/134403239/sibalatawukivapes.pdfIn PDF document text
    • https://fezizijopugasu.weebly.com/uploads/1/3/4/8/134850826/2848221.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622e1aee4feaa---75316326877.pdfIn PDF document text
    • http://avvocatogiuliani.it/userfiles/files/85204407560.pdfIn PDF document text
    • http://www.volteram.com/kcfinder/upload/files/rovovefiwotaxezabori.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_off0000c6d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000deec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEC 11100 bytes
SHA-256: 5d5ccbdea0a8466af504d43a7c246406e895737eb021e40a41449507dcf120cb
font_02_sfnt_off0000f873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF873 17776 bytes
SHA-256: 6a47594b52c1cd989fa01753966784fcfc3accc52ba43d91f1f7ec315a8b5468

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