PDF malware analysis — malicious · 745ed1bde191e501

MALICIOUS

PDF

3.2 KB

MD5: df929058bee3d02675d2bf6a464ef152 SHA-1: a7c32b08658340ba80a1eba2c74401b5ceaf0fc9 SHA-256: 745ed1bde191e501053a762e6a2299df91fd0d05d3a54bc6696c795d50db458f

206 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains embedded JavaScript that utilizes the unescape function, a common indicator of exploit attempts. The script appears to decode a string and then execute it, likely to download and run a second-stage payload. The critical heuristic firings and ClamAV detection strongly indicate a malicious PDF exploit.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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.
ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `b1eef1747adf93e6902c7d0f65cfd7ad5c3072e7e0ff1108d77c1378a96dbd13`	pdf-javascript-stream	PDF /JS object 7 at offset 0x9C6	459 bytes

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