Malicious PDF — malware analysis report

Static analysis result for SHA-256 60762e9e4d37fbb6…

MALICIOUS

PDF

11.7 KB Created: 2010-02-20 19:16:39 Authoring application: Hejolijimibovo
MD5: 7edf25dccd1e4380bf6d8bdd46977c88 SHA-1: d1daf4f2d730ef9dad8928d2e0a9ad7f71196ace SHA-256: 60762e9e4d37fbb6eec5de99c998717c2e43d984953b54bbeb3285e28fd9fe16
86 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript that is obfuscated but appears to be designed to execute commands. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' strongly suggests the document's intent is to prompt the user to copy and paste data into a shell, which the JavaScript would then likely leverage. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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_obj0018_000.js
355deecc8d65ba9672515afd4a464d6f5dc2f777055ba38b2a095f46aac3f6d6		 pdf-javascript-stream PDF /JS object 18 at offset 0x2A39 628 bytes

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