PDF malware analysis — malicious · 6e724cca3b912fa8

MALICIOUS

PDF

952 B

MD5: 0ca05e1ebd1f97847f5d3f207e64ff24 SHA-1: c3c7ac4e6fecb774a6e08b1d1fbf3322c1210e7e SHA-256: 6e724cca3b912fa84b5235188cddaeff43a32c52984d6b364e76a47ae6b21b45

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, and the PDF_JS_EXPLOIT_CLUSTER firing. The JavaScript appears to be designed to decode and execute a payload, likely a downloader for a second-stage artifact. The ML classifier strongly suggests malicious intent. No specific family could be identified due to the obfuscation and lack of further indicators.

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.
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj111712_000.js` `d930752a68866281b864c3236bdc601198a65cafe9bbdc10a90f53d79b2dd5f3`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x1E5	511 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.