Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2137d9f0775373…

MALICIOUS

PDF

4.6 KB Authoring application: Rabsezamo
MD5: 9e5f92db78287d690c62ad9dbd6caa64 SHA-1: 56579984d78fcfc2be4a9d85b469d893744fea70 SHA-256: 8c2137d9f0775373c88046f6474b3859010a8598a67722670f9e5f8488390a1b
106 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, as indicated by multiple heuristic firings and the presence of a javascript_obj0011_000.js artifact. ClamAV detected this file as Pdf.Dropper.Agent-7280847-0, suggesting it acts as a dropper for other malicious content. The ML classifier also strongly flagged it as malicious. The document body appears to be heavily obfuscated or corrupted, providing no clear user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7280847-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7280847-0
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0011_000.js
66f98439581fcf5ee099a5402bb5f11b166235f27ba5a2a82b745027d88ab935		 pdf-javascript-stream PDF /JS object 11 at offset 0xCC8 884 bytes

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