Malicious PDF — malware analysis report

Static analysis result for SHA-256 318193eff3988903…

MALICIOUS

PDF

45.0 KB
MD5: 66c0965527cddac6605586889ec209db SHA-1: 60960483ccd4cadf4a4060cda4c057238be8404a SHA-256: 318193eff398890376cf220dd4d2f2edaea17f6a5b60985ed88cfcadb69533a6
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 detection as Pdf.Exploit.Agent-36128 confirms its malicious nature. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code, potentially downloading and running a second-stage payload. The DOC BODY content is not indicative of a specific lure.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
36923920815f9aa7ba623b03d9ae641ca2b43a5bce7e7564690b8db9678a43bb		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
dc3a33a3e913169caef1a78632f662b3f0ad071d7e27a7a0516948d4fe7f7053		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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