PDF malware analysis — malicious · 10caebb849650687

MALICIOUS

PDF

4.4 KB

MD5: b9f5856b49257fa4ed135f81d6326c93 SHA-1: 46a4421d7959bc7641a5e7a42d335c3187ed5981 SHA-256: 10caebb8496506875c709206c59dfd072edb2ec4c268ea4c763fff77b8bc5a66

196 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 7

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.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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
`exploit.swf` `0d654e0a08880e79411789412b94d6914828f45370b00a90d7ee5ec7c0a859af`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x4D1	919 bytes
`javascript_obj0017_000.js` `6c4c288717ee189d0486a6e20d81fed107bcca7186d05954b3bdc069be8b026f`	pdf-javascript-stream	PDF /JS object 17 at offset 0x91C	1659 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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