Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00b5e48d3358dfa…

MALICIOUS

PDF

1.3 KB
MD5: 47fd0be5e3b13d8f76ca9c531c8af4d6 SHA-1: 4115b8262795effa9ee0138b254f1e3958a21ae4 SHA-256: d00b5e48d3358dfa5ea3f4f00a9111a7742dfc2a104ad9f3a62693d56caf6a2b
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT, PDF_JS, and PDF_AA heuristics. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The presence of JavaScript suggests an attempt to execute malicious code upon opening the PDF, likely leading to further stages of infection. However, the exact nature of the payload could not be determined due to obfuscation.

Heuristics 4

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Additional-actions dictionary low PDF_AA
    PDF defines /AA (Additional Actions) that references an executable action (JS/JavaScript/Launch/SubmitForm) — can auto-trigger on document or widget events. Form-field calc/format/validate/keystroke handlers in legitimate interactive forms commonly fire this, so it is reported as a low-weight signal; weaponised auto-execution is flagged by stronger rules (PDF_OPENACTION, encrypted-with-JS, etc.)