Malicious PDF — malware analysis report

Static analysis result for SHA-256 3511795763b6ddea…

MALICIOUS

PDF

68.2 KB Created: 2021-01-30 09:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bce6c22b6748d974d5d6f181bb4a1335 SHA-1: 084c41d7e78de91215d799cc62330162061c94f9 SHA-256: 3511795763b6ddea40eeebb6b4e58266c5662ff511b953632f668055ae60738c
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with several pointing to potentially malicious domains and employing UTM parameters, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to harmful content.

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
  • 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://seumenha.ru/123?utm_term=smok+alien+kit+price PDF link annotation
    • http://antinomi.design/jujalijapool17u.pdfIn PDF document text
    • https://cdn.sqhk.co/nawakema/pgeamia/44086338631.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/cT9aidW/kanolokenulofet.pdfIn PDF document text
    • https://pupinalakarer.weebly.com/uploads/1/3/4/2/134234580/2969017.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/d0DA9hd/switching_keyboard_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/motakolilo/wlifijv/viwebixibuwizuzizo.pdfIn PDF document text
    • https://foxazejepanobo.weebly.com/uploads/1/3/1/6/131637169/3145882.pdfIn PDF document text
    • https://rujibuteza.weebly.com/uploads/1/3/5/3/135308743/7062626.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/xghUgjE/turuzuwelejosox.pdfIn PDF document text
    • http://liketsven.xyz/definicion_de_calidad_de_vida_segun_la_omsjgeoe.pdfIn PDF document text
    • https://mizugoveram.weebly.com/uploads/1/3/3/9/133986338/95bc23d23.pdfIn PDF document text
    • https://dosodufixelo.weebly.com/uploads/1/3/2/6/132682620/judojeberu_kezamige.pdfIn PDF document text
    • https://cdn.sqhk.co/lidupusumoj/ha5iaja/girl_voice_changer_for_ps4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/jakezewegajesisipevat.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/niwipeti.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/incident_report_form_template_childcare.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_off0000cf5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF5F 5068 bytes
SHA-256: d2017e9994d1fb443eee62ebadd4a7df23daf99156bbadbe95746194b4c03c0c
font_01_sfnt_off0000e087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE087 10552 bytes
SHA-256: da9b13a4442e53b9f832f05ec7b2fb7320551f1e41e19caa01b52f4ba5a0c011

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