PDF malware analysis — malicious · d8d3160dc238751f

MALICIOUS

PDF

2.0 KB

MD5: 376e01fdd4e48fba7625c5f14ce06ee1 SHA-1: 7dcc4e06146c0745ec5b84ac128023d1041cea32 SHA-256: d8d3160dc238751f443a0f5614b34788f90db489a7af35f9c22cbab78ce705de

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

This PDF file was flagged as malicious by an ML classifier with high confidence. Static analysis revealed embedded JavaScript, including an eval() call, indicating the execution of obfuscated code. The presence of a JavaScript object suggests the script is intended to download and execute a secondary payload. No document body text was available for analysis, but the script's nature points to a downloader or dropper attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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` `cd47ea49f28f92a24aed7d71f6579a8fc3b8aadb3f88734fd4df4fc455221f63`	pdf-javascript-stream	PDF /JS object 2 at offset 0x5B	3407 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).

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