PDF malware analysis — malicious · d8426d3fe3bdfd2a

MALICIOUS

PDF

2.1 KB

MD5: eca0e22dd2e66c89a33de87baa4d14a5 SHA-1: e4a40b260b73f8b1e4d31b669a6186e884365c10 SHA-256: d8426d3fe3bdfd2ade9987d8bd24254fcf7c461511e52eff38e4803c8ded5ac8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by multiple engines, including ClamAV which identified it as 'Pdf.Dropper.Agent-7310474-0'. Static analysis revealed embedded JavaScript with eval() calls, indicating an attempt to execute obfuscated code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for dropper malware. The ML classifier's high confidence score further supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7310474-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7310474-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0002_000.js` `8fc4fb18a37dc1812452472e6496af8754ad461cb4f843efdefb530da93eea7f`	pdf-javascript-stream	PDF /JS object 2 at offset 0x61	3554 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 8 long base64-like blob(s).

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