PDF malware analysis — malicious · 1d72e259137f6a4f

MALICIOUS

PDF

2.7 KB Created: 9882-01-01 Authoring application: 1695

MD5: ff24a5932fc5ec69088d6c72c4d0e2ec SHA-1: ebb9375fa3527ecd158a04ed0acb9f15a4976dec SHA-256: 1d72e259137f6a4f429569e17743ff94ca733301803c36e6584fa593dfa4abe5

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, flagged by multiple heuristics including ML and ClamAV detection. The embedded JavaScript file, 'javascript_obj0013_001.js', is suspicious due to obfuscation indicators. This JavaScript is likely responsible for downloading and executing a second-stage payload, as indicated by the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' firings.

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` `1eafb4125a07853c8fe929326c642d9a7ec630485355aa6230d20a74dcd5e922`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4807 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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