PDF malware analysis — malicious · d70e28ce45931947

MALICIOUS

PDF

7.8 KB Created: 2009-11-14 19:48:98 Authoring application: PDF Library 2.4.7 (via PDF Library 6.5.3)

MD5: a6d71feba96dd6b5ea376ac816b8e07b SHA-1: 9e92d6c2661590132fb2a4a2105205937371c2e9 SHA-256: d70e28ce45931947dc55c76157fcd445a77f908b9f69cffe534f70bbbdcb38ef

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, which identified it as Pdf.Exploit.Agent-3483. Static analysis revealed embedded JavaScript and the use of ASCIIHexDecode filters, indicating an attempt to obfuscate malicious content. The primary attack pattern involves exploiting PDF vulnerabilities to execute arbitrary code, likely through the embedded JavaScript.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-3483 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-3483
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` `042c5261388c234864aad106a9fe03a49e12d0c19a8fb31fd3df59b64a2388ef`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	38505 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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