PDF malware analysis — malicious · 3daeebc25380e084

MALICIOUS

PDF

14.9 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 3999d58f14ca2351ee3b2e22e889a078 SHA-1: 1cdabc7a3c688a383a5d347a9bebafa4c24564bf SHA-256: 3daeebc25380e084d8ac417643ab6abeede4867a05fcf97b083238d8aba8cede

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple 'eval()' calls, indicating obfuscated code execution. ClamAV detection as 'Pdf.Exploit.Agent-36118' strongly suggests a known exploit. The embedded JavaScript is designed to execute arbitrary code, likely downloading and running a second-stage payload. The ML classifier also flagged this PDF with a very high probability of being malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `b8e2de8c3e3861533df725e1c68050c833164b7b67457845e2daadd490c146cb`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13701 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`javascript_obj0013_001.js` `fc8ff5f3697a4e40d85ee9c64729b81a64a6316eb2c6122763665f7eb0c4a78f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x359	14407 bytes
Detection ClamAV: Pdf.Exploit.Agent-36118 Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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