PDF malware analysis — malicious · ecc09c6dfb0383fb

MALICIOUS

PDF

7.3 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: eaa09ee5d096bffba8573c6faeb0db2c SHA-1: 9ec78fa2bd8bb7c97ad5be2e432565b62f75df1d SHA-256: ecc09c6dfb0383fb57d9f2853395e674e8e2eb6157c4f5360e447c5dae98014a

210 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

This PDF file was flagged as malicious by ClamAV with the signature Pdf.Exploit.Agent-35587. Static analysis revealed embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. The ML classifier also strongly indicated maliciousness. The primary intent appears to be the execution of this JavaScript, which likely downloads and executes a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-35587 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35587
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.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `6ddae61067fa877af7107a3e60a6016acda1faf2d3e1aab6084fd9496d884cf3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D6	5835 bytes
Detection ClamAV: Pdf.Exploit.Agent-35587 Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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