Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ef1606583b552e…

MALICIOUS

PDF

69.5 KB
MD5: 8a379569731bc3e2a4f8fc68709efaeb SHA-1: d5d1a10b202b5b6deec659389ba72f00ecee7ba1 SHA-256: e9ef1606583b552e5b00fc59066d2bb84911a93dbb890b6f9a091f0cd053fb50
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, and a critical ClamAV detection for obfuscated objects. The embedded JavaScript stream, 'javascript_obj0012_000.js', is the primary mechanism for executing malicious code. The presence of an embedded URL, http://www.bitstream.com, suggests a potential download or redirection target. The document body is heavily obfuscated and does not provide clear user-facing content, reinforcing the malicious nature.

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
ee28f86b8330070c3f3c8c6cb99ce0eb4bb12070a71d2b32d0360ba94e4a219d		 pdf-javascript-stream PDF /JS object 12 at offset 0x105FC 3556 bytes

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