PDF malware analysis — malicious · f8d5f4bfc4db42a3

MALICIOUS

PDF

12.3 KB

MD5: 4fd30715a8bab82f68cd17103d292c90 SHA-1: ef9b117de198bd9c5ecd3a1a72ffd2ede3298579 SHA-256: f8d5f4bfc4db42a34e7a2f17552e97256f469f214487fbad0926775052b6d01d

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JavaScript file. ClamAV detections further confirm its malicious nature, identifying it as a PDF exploit. The embedded JavaScript is the primary mechanism for executing malicious code, likely leading to the download and execution of additional malware.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36365
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.
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_obj0076_000.js` `379bedca34330bbe7778e4058c84dfada458c11b81259a0b9cb4a588aa2ec6d7`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11498 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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