PDF malware analysis — malicious · ae7e45d25643c1cc

MALICIOUS

PDF

2.7 KB Created: 5796-01-01 Authoring application: 3333

MD5: d77f6e7a91ee43496b94b5b66d29297a SHA-1: 71a74f9f73a927894a8cfda0e8bb9c4defc840fd SHA-256: ae7e45d25643c1cc49e498d956dc6dd98d2ca9e39fe2269d3be134fc1172a414

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-36014 and a machine learning classifier with high confidence. It contains embedded JavaScript, indicated by multiple heuristic firings. The embedded JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation and hex escape sequences, suggesting it is designed to perform malicious actions such as downloading and executing a second-stage payload. The exact nature of the JavaScript's execution is not fully discernible due to obfuscation, but its presence and the exploit-related heuristics point to a malicious PDF designed to compromise the user's system.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
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_obj0013_001.js` `f368a082a4e48e58baf79f9d926203f40a59fc28d9b3aa413f6fb68b0cb5013a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4798 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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