PDF malware analysis — malicious · 608bed5201ed1e3c

MALICIOUS

PDF

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

MD5: 024a22a55f7d47cda86a32536faa6e54 SHA-1: d9b47df666aaacf19cd4ce0450691e564b5e9bf0 SHA-256: 608bed5201ed1e3cb015ce39e21bf91ec18c49f3cf7075de52082b6b962177b8

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution

The sample is a PDF file containing obfuscated JavaScript. Heuristics indicate the JavaScript is designed to exploit a PDF vulnerability and execute arbitrary code. The script uses eval() and string concatenation to decode and run a payload, likely a second-stage downloader or malware.

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` `3460ba7857a6aab91df9ae98eae6d251aedc9b3c47903a8510829541336f0544`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	9416 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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