PDF malware analysis — malicious · 0d6fe714556bb705

MALICIOUS

PDF

1.5 KB

MD5: 19937b46e6184676ca64dc511d282619 SHA-1: 18650f14de6b904e27503f6f54b5eba8d4577d46 SHA-256: 0d6fe714556bb7054e2b8d89576a6a79ed2820738f9f10dcd19c9837bcd84485

148 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains embedded JavaScript, identified by heuristics as an exploit cluster. The script attempts to download a second-stage payload from a reconstructed URL, which is then likely executed. The presence of JavaScript and exploit indicators strongly suggests a malicious document designed to compromise the user's system.

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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_obj111111_000.js` `01eb78affdf420ddc2130094b6ef65cf847f2466968e8af745fbc4beb5ac6101`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	2214 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `d09e77deb0204300c8f365857a7830bdf631b4e58c2ee30ee0fe11390ab47061`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x548	65 bytes

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