Malicious PDF — malware analysis report

Static analysis result for SHA-256 79971ae53502b581…

MALICIOUS

PDF

65.4 KB Created: 2021-03-18 16:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 47758e0eb46a6001176b5674d33c9730 SHA-1: 1990f50c7611a9f298a325c0236119837a034fd5 SHA-256: 79971ae53502b5818f5ddcb571bdfbd88f2c445263ef2606a9e731d1b709737c
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a malicious intent to redirect users. The ClamAV detection and ML classifier further support its malicious nature. The document body, though heavily obfuscated, suggests a lure related to 'al quran english version pdf' to entice clicks on these malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6589

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://dugedepap.ru/award?keyword=al+quran+english+version+pdf PDF link annotation
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    • https://cdn.sqhk.co/rikopekela/Sgchcg8/15642009297.pdfIn PDF document text
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