Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7cadf16ba722e0…

MALICIOUS

PDF

45.0 KB
MD5: 3f54299eb274e02a42c75629bdcd1be5 SHA-1: 72f7d30d4c6d74a796086ee42bf54de1aa1d2142 SHA-256: 8b7cadf16ba722e046f6c80a24ec308cc485591c74eea428cfc00920ae352e8a
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of extracted JS streams. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests it's a malicious exploit. The embedded JavaScript is likely responsible for executing the exploit, leading to a malicious payload. The document 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
696524e87580c60be55ce450d4d2a8fb1f53d64a570079f9171b0cc5c047422b		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
80e7ae54d2e04ef4b7a463247279c70b844c389e773658823327c4e0310c31d1		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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