PDF malware analysis — malicious · 60cbca2e3df2dab5

MALICIOUS

PDF

9.5 KB

MD5: 1cdcd32a27b8842779953ef385c88f43 SHA-1: d5379ffd153e59ff677a50966f29b8c391ed5ba7 SHA-256: 60cbca2e3df2dab5b6729f92113383bb44cb6f653f1e16f799b23698ba501b82

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript, which is further obfuscated and uses an eval() call. This pattern is commonly used to download and execute additional malicious content. The ML classifier strongly indicates maliciousness, and the JavaScript stream is flagged as a suspicious extracted artifact.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER

PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0016_000.js` `d5c1a6aa4028c29987d8ed50634517ad956ba08f0bd7385e3bb96e559ce192cb`	pdf-javascript-stream	PDF /JS object 16 at offset 0x2046	146 bytes
`stream_006_off0000224d.js` `4289b42c9fcbfe4dc4159e64fbfb9857982871902ba3c8cc599f7819f23b49e0`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x224D	331 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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