Malicious PDF — malware analysis report

Static analysis result for SHA-256 2718d8aae38a61d4…

MALICIOUS

PDF

69.1 KB
MD5: 3d3831c24d53742e023e5ca3faebdfef SHA-1: 944e53bc437bdc52b67058c8893108b15adfefd4 SHA-256: 2718d8aae38a61d44fd695c4b08b096b44f6e738b676e1d831634146bffcb570
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection for ObfuscatedNameObject further suggests malicious intent. The embedded JavaScript stream, javascript_obj0012_000.js, is likely responsible for executing malicious code. The single embedded URL, http://www.bitstream.com, is also flagged as suspicious.

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.
  • 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.bitstream.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
77c235e8294d4f0e2192ac5b9f83ba248b12e2bc73e23490501029f6613e1e75		 pdf-javascript-stream PDF /JS object 12 at offset 0x10616 3038 bytes

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