Malicious PDF — malware analysis report

Static analysis result for SHA-256 7938da9aa6d31e51…

MALICIOUS

PDF

72.9 KB Created: 2021-02-25 09:51:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 8382a177bbb8056046aef2d9846f2319 SHA-1: 5ad307225f38ff7aaeca2945c38e5ccd3ad29bbd SHA-256: 7938da9aa6d31e5196716a5bf8066d96e03cc6215ef6bdbd89cc58ea3d124b11
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=contract+law+questions+and+answers+pdf+australia In PDF document text
    • https://likizosuzi.weebly.com/uploads/1/3/4/8/134886942/2434373.pdfIn PDF document text
    • http://relax35.ru/lakujafwwu6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5fda5f86c6c56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366989/normal_5ff57fb4af99b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458622/normal_601b7b04a72f2.pdfIn PDF document text
    • http://obmenkalnr.online/13769416243z1yh0.pdfIn PDF document text
    • https://zizudenavoxe.weebly.com/uploads/1/3/4/0/134017195/sugiwazufafikadogo.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/tOatjbA/kajejugowapezupajojad.pdfIn PDF document text
    • https://deremorukoj.weebly.com/uploads/1/3/4/4/134490203/6d2eb11e4d1ef6e.pdfIn PDF document text
    • http://tevuvisena.iblogger.org/make_a_police_report_online_uk.pdfIn PDF document text
    • https://vumazilizulorap.weebly.com/uploads/1/3/5/3/135300666/xixafafamupanum_pakewovex_zudabigod_xonedi.pdfIn PDF document text
    • http://hook-up.fun/virabebefonev0g9yf.pdfIn PDF document text
    • https://cdn.sqhk.co/pawapoma/cxJMijf/51830283703.pdfIn PDF document text
    • https://cdn.sqhk.co/waximanodif/Khdhcid/latekepugux.pdfIn PDF document text
    • https://lexezidelaxo.weebly.com/uploads/1/3/4/6/134605078/1032429.pdfIn PDF document text
    • http://profyhouse.ru/veloda86edp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vepawipexujobok.epizy.com/samsung_tv_sound_output_optical.pdfIn PDF document text
    • http://gukamapi.rf.gd/what_is_an_heirship_affidavit_form_texas.pdfIn PDF document text
    • http://sujemepis.epizy.com/dragon_quest_xi_money_making_guide.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11F 5272 bytes
SHA-256: 9626014b9ce05d4a1ccc30ba9d5543370a588a79a7e18872249f5bd90d496fa7
font_01_sfnt_off0000f328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF328 10228 bytes
SHA-256: 99f6aaaa274a9eff8a13d82de61ad4a63b3ce3d450b318ec02b39c4f3295de47

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