PDF malware analysis — malicious · eaa4fd08a9fb93c3

MALICIOUS

PDF

7.6 KB Created: 2009-11-14 19:47:69 Authoring application: PDF Library 3.8.3 (via PDF Library 1.4.6)

MD5: c22037f277f5d308061e59a21cec597d SHA-1: 2b534ba3d9ab97def03324ba8b170e6003a881dc SHA-256: eaa4fd08a9fb93c39529d552e7a77511a320ce2e8534b21c3db29a6828dd8785

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF identified by ClamAV as Pdf.Dropper.Agent-7319587-0. Static analysis detected JavaScript actions and embedded JS streams, along with ASCIIHexDecode filters indicating obfuscation and potential exploit activity. The ML classifier also strongly flagged this PDF as malicious. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7319587-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7319587-0
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
Suspicious extracted artifact medium 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.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `df3b25a0420c75de5b83e58513ba46e0220a0c9c76637173ab23ccb1c7824890`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37425 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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