PDF malware analysis — malicious · e77077f7e693d8c6

MALICIOUS

PDF

5.5 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe (via Notepad)

MD5: d6e9e9f564d240f4fd8cd7fc084ecf95 SHA-1: 06a01dee05e047257f74f75fc416e06c6fd0ac33 SHA-256: e77077f7e693d8c6ece54d2aaa3765176737748bcd4d238d12bff9002d9055c7

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by ClamAV with the signature Pdf.Exploit.Agent-3896. Static analysis revealed embedded JavaScript with an eval() call, indicating code execution. The ML classifier also assigned a high probability of maliciousness. The embedded JavaScript likely attempts to exploit a PDF vulnerability to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-3896 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-3896
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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_obj0006_000.js` `381fab3505993dc034b3bd81a85c47fbc23051a80b9f4acc0ca4098f4fa07c38`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1358	147 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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