PDF malware analysis — malicious · 3bd9c3f262d94a93

MALICIOUS

PDF

2.7 KB Created: 3427-01-01 Authoring application: 4191

MD5: c6313a9f40f3709b9d5c37bd4db9c0ef SHA-1: ecd7586074c1f93d3590be13babae77b631d0bb7 SHA-256: 3bd9c3f262d94a93c7f3de5d6a91015cd555d32d157294ae7f68400e83cc3f05

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it contains an exploit. A JavaScript stream was extracted, which likely contains obfuscated code designed to execute a second-stage payload. The presence of JavaScript actions and embedded JS streams points to an attack pattern leveraging these features for exploitation.

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` `8f364144ea339ccff0b6675925204cb4cbc1559037b11b2719c89d4cf855e437`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4743 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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