Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9ee33dc0624c89…

MALICIOUS

PDF

12.6 KB
MD5: 56064948c17f8e016a8fb9d2623b2983 SHA-1: dbb530675b853e8368e22a9e171d0283e20671b6 SHA-256: cb9ee33dc0624c89c2306637c800c96f3a80e7eb92789868759ee3b7d382d74e
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detected this as Pdf.Exploit.Pdfka-9, suggesting it exploits a known vulnerability. The embedded JavaScript is likely designed to download and execute a secondary payload, which is a common technique for initial access.

Heuristics 3

  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
976541a14376b910471d538ed8d17db34dce4c89077e6624d82b331671bc8546		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11776 bytes
Detection
ClamAV: Pdf.Exploit.Pdfka-9
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.