PDF malware analysis — malicious · b6af4bbdb5422249

MALICIOUS

PDF

374.3 KB

MD5: 82f4cd6169387792a3da6665160cea8e SHA-1: f709d2216d442e1c5b837a792a037c1be98780e1 SHA-256: b6af4bbdb5422249caab8e1e4d9ad99001fb1008ead77ef3b35bcb007882aeac

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript and utilizes ASCIIHexDecode filters, indicating an attempt to exploit vulnerabilities. ClamAV detections confirm this, identifying the file as Pdf.Exploit.Agent-36175. The embedded JavaScript is likely responsible for executing the malicious payload.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36175 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36175
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0008_000.js` `422f3652a71fc6c9ed90b21df6318a341a329e1f9a8729f3e1a94a8e873e098c`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	127502 bytes
Detection ClamAV: Pdf.Exploit.Agent-36175 Obfuscation or payload: unlikely

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