PDF malware analysis — malicious · e5437dec453154c0

MALICIOUS

PDF

8.0 KB

MD5: 2d82fec78fa6644d901b5d1b42528a00 SHA-1: d48e2e03851db7f75c2b2fea13d03103bfe1c7b4 SHA-256: e5437dec453154c0546528df2139f945e6bdf991ed7fb6a1fef091027170f3f2

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers heuristics related to JavaScript actions and streams. ClamAV detection identifies it as Pdf.Exploit.Agent-36063, indicating a known exploit. The presence of JavaScript suggests an attempt to download and execute a second-stage payload or perform other malicious actions.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36063 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36063
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.
syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCAN

PDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off000001cb.js` `eb39e2de4dbbc100de6d3e30aa43ff78fa075618862ba1ebba5151ea3a3b848d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1CB	273 bytes
`deobfuscated.js` `70d7dc4dad5435b9ef82a1409879c4a96fcd890ef2e85427f8925dcf665ee2b1`	deobfuscated-js	PDF JavaScript deobfuscation pass	28178 bytes

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