PDF malware analysis — malicious · 6e4f716d620466d7

MALICIOUS

PDF

10.8 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 1f718be1a7ea6945d0f0c775f3dc61ae SHA-1: 79ef53c2f89385390d875b36679dd9ad61d35eeb SHA-256: 6e4f716d620466d71a5114a9b030a68be58bf8cb4fb01f602e2af519ae05d343

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains obfuscated JavaScript that utilizes eval() to execute dynamically generated code. The script appears to be designed to decode and execute a second-stage payload, as indicated by the 'PDF JavaScript exploit cluster' heuristic and the presence of a large JavaScript stream. The ML classifier strongly suggests malicious intent.

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
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_obj0013_000.js` `aebd3c5cc8e545abb7658cc51147a71e011dc081b2cbc11d9423bcb719fd1f11`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	9499 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 10 long base64-like blob(s).

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