PDF malware analysis — malicious · b35e17c703e2b164

MALICIOUS

PDF

1.95 MB Created: 2011-72-51 03:25:00

MD5: cbaca7b1c052b8a53f200b22651d3abe SHA-1: 27a2850bc475ae21982234036cf482b6d3a80efc SHA-256: b35e17c703e2b164dbfcfc6009d3a1020b2897f545f7e97b89f201da850cc8ae

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1204.002 Malicious File: Malicious JavaScript

The PDF contains embedded JavaScript, which is flagged by multiple heuristics including a high-confidence ML classifier. The JavaScript stream is obfuscated and uses an eval() call, indicating it is designed to execute arbitrary code. The primary attack pattern is likely to exploit vulnerabilities or deliver a secondary payload via this script.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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_obj0001_000.js` `cc1ccb7a1b451fecf2ce6b413628c5d874a1efd22ea431aafd2efc34211c1408`	pdf-javascript-stream	PDF /JS object 1 at offset 0x61C0	541 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.