Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eb492bec4a3464c…

MALICIOUS

PDF

73.0 KB Created: 2021-03-03 10:08:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e1f52ef0800b346906270c46c2c903b3 SHA-1: a889deb0bfa142e0b125f245adc103a9f0ff5c89 SHA-256: 6eb492bec4a3464cfa6821bd42fc86418d72cbc31b12ac081de4e0ebcd7cfe9d
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure designed to redirect users to malicious content.

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/wix?keyword=science+8+electromagnetic+spectrum+worksheet+quizlet PDF link annotation
    • https://cdn.sqhk.co/bitanalagep/xiizhfV/double_clutching_weasel.pdfIn PDF document text
    • https://cdn.sqhk.co/lepagesali/ieX1hbY/21483703438.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/zgiOgcU/98282029726.pdfIn PDF document text
    • https://cdn.sqhk.co/gumorefose/hihMRlB/davurunubuferirav.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/dezoxugozomo.pdfIn PDF document text
    • https://cdn.sqhk.co/rawatajizefu/hhjhjRx/download_game_beach_buggy_racing_blitz_mod_apk.pdfIn PDF document text
    • http://forsage.pw/enter_the_gungeon_old_man_bullet60kl4.pdfIn PDF document text
    • http://xupokaxe.medianewsonline.com/37787235904.pdfIn PDF document text
    • http://prodive.su/852869016958pk84.pdfIn PDF document text
    • http://smeshnoykir.space/97586287454gc9w9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389387/normal_5fff4c9929d79.pdfIn PDF document text
    • http://vowujebotoza.mywebcommunity.org/a_midsummer_nights_dream_text_with_line_numbers.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/rubidokezive/bangladeshi_gaan_hd_video.pdfIn PDF document text
    • http://jopiwutipav.epizy.com/remesasunepitupuneza.pdfIn PDF document text
    • http://pujumek.myartsonline.com/what_is_the_fundamental_code_of_jewish_civil_and_canon_law.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/92275344894.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/vuwekazajomigunelulilan.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_off0000dec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC2 5976 bytes
SHA-256: 92bb0de412052d32930c255d4e84c73b154df179da55bf0abde821b1f22d6b59
font_01_sfnt_off0000f30c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30C 10412 bytes
SHA-256: 84f5f1ade27ff8ef5135c5d993e338adff5bc0cd6979c2e3576a59927474b280

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