Malicious PDF — malware analysis report

Static analysis result for SHA-256 9412afaa61f9c389…

MALICIOUS

PDF

37.5 KB Created: 2020-09-09 02:10:37 Authoring application: pstoedit First seen: 2026-06-12
MD5: d2270072fa2b5d2a8077a2fb0aa8cd6c SHA-1: 477effd3f64507a4d91ebb7f71de8a0e8af5825e SHA-256: 9412afaa61f9c389b7218c9094394f7e0b054650e356aff1c7d87ed7912f6d34
94 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and has been flagged by ClamAV as a phishing trojan. It also contains embedded URLs, one of which is a placeholder 'http://#', suggesting a potential redirection to a malicious site. The document body, though heavily obfuscated, mentions 'Equation of a circle worksheet', indicating a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5642

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://www.ascendercorp.com/ PDF link annotation
    • http://www.ascendercorp.com/typedesigners.htmlPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#PDF link annotation
    • http://purl.org/dc/elements/1.1/PDF link annotation
    • http://ns.adobe.com/pdf/1.3/PDF link annotation
    • http://ns.adobe.com/xap/1.0/PDF link annotation
    • http://ns.adobe.com/xap/1.0/mm/PDF link annotation
    • http://ns.adobe.com/xap/1.0/rights/PDF link annotation
    • http://scripts.sil.org/OFLPDF link annotation

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A1 5208 bytes
SHA-256: 513564d389f1a7cf442a98d98078e8077c0b77790c1382b76aa009dc06390f31
font_01_sfnt_off00006ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD1 9988 bytes
SHA-256: c13d80d4064bc7b1e385761e96e0c93832b2362a2b0497c74a4197048a11624a

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