Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63d73e934d76729…

MALICIOUS

PDF

73.6 KB Created: 2021-03-04 03:27:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f8c1c6fc81b8a854f8f6b960bc43b070 SHA-1: 57f0651f8a46fc3c28f4a1af05e4c35afcf74316 SHA-256: b63d73e934d76729aa110e68c82d6619475130311ede628609f55d6970c3f700
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing attempt, specifically using an image lure to redirect users to a malicious URL. The embedded URL points to 'zajinet.ru', which is likely a phishing domain. Although no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest malicious intent for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://zajinet.ru/award?keyword=what+book+comes+after+new+moon PDF link annotation
    • https://cdn.sqhk.co/zukasedu/haFihgg/business_analysis_definition_in_accounting.pdfIn PDF document text
    • http://andyhongdigital.com/dc_comics_wiki_lucifer15wqm.pdfIn PDF document text
    • https://cdn.sqhk.co/xizefonuma/hhighjO/lefuvususobusakatamoxo.pdfIn PDF document text
    • http://xuxisozolawub.22web.org/capstone_mining_corporation_annual_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376599/normal_602fb9769c5f4.pdfIn PDF document text
    • https://cdn.sqhk.co/geruxibab/hb3sFqD/xemizabupag.pdfIn PDF document text
    • http://kedejivebirago.iblogger.org/bizirudutogozovivi.pdfIn PDF document text
    • http://cpskras.website/rhetorical_triangle7czuz.pdfIn PDF document text
    • https://cdn.sqhk.co/zanivuwiduvo/j1hYjeR/game_maker_studio_2_language.pdfIn PDF document text
    • http://minuette.me/catfish_farming_proposalyqf2k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367296/normal_5fe9efdd1a991.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/penale/ipad_mini_5_date_de_sortie_france.pdfIn PDF document text
    • http://wadobenozunon.rf.gd/28904699165.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/zapudonunovogani.pdfIn PDF document text
    • http://filubukuwewe.epizy.com/81950131849.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/bharathiar_university_m._com_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/49669421059.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/63160973209.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/22070174569.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F20 5136 bytes
SHA-256: 7451c425f545156cb0148f3478d9e59cb2a1762d1f533d865a0ac396339dcea6

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