PDF malware analysis — malicious · a61d0d55244bec16

MALICIOUS

PDF

2.7 KB Created: 3734-01-01 Authoring application: 9919

MD5: 17fe7c6ef15b3b6afab4788e4f659891 SHA-1: 01a79b87c2a97c22216dd9a987688b13d7b186fd SHA-256: a61d0d55244bec16002d5f0c3f1b58858518ff863bb4282eaac67594c4b80ca2

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is identified as a malicious PDF by ClamAV (Pdf.Exploit.Agent-36014) and a machine learning classifier. Static analysis revealed embedded JavaScript, which is often used to exploit PDF vulnerabilities and download secondary payloads. The presence of JavaScript actions and embedded JS streams, along with ML and ClamAV detections, strongly indicates malicious intent.

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` `5afa167be0c63383127bcd84131d344f0110c8070d1a1fc667974acba4dc14fc`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4766 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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