Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb0936de35c41aa…

MALICIOUS

PDF

12.7 KB
MD5: e1c14b6bc62a4035f5ba3adc5a8e0f14 SHA-1: d1e830fb6556575c3ee7ba46b9e4a22cb12847a2 SHA-256: feb0936de35c41aa492abc6e1cabb09efdc6d0475dd5ad71fae47d36d72f3125
108 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a JavaScript object. ClamAV detection as Pdf.Exploit.Agent-36723 and a high ML classifier score confirm its malicious nature. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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_obj0076_000.js
aff16139ad91208d699ba050f38199918f69f8999231b71e284025a77561e37c		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11938 bytes

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