PDF malware analysis — malicious · d917b9c95f0abe80

MALICIOUS

PDF

12.7 KB

MD5: 756129aed03ee3189e667248c2e1b731 SHA-1: cd0a5151283cb44d0d6467a2b033a2a6af826a17 SHA-256: d917b9c95f0abe80b4e69baba8f10d4ecdc5e017b47002027735a70dd62fa2f6

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and the presence of an extracted JavaScript file. ClamAV detections 'Pdf.Exploit.Agent-36365' and 'Pdf.Exploit.Agent-36364' strongly suggest exploitation of a PDF vulnerability. The embedded JavaScript is the likely mechanism for executing a malicious payload, potentially downloading further stages.

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` `1098a849369059da9b4100c513385927a50354d76a0d75ae1564c4aef46cae8b`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11881 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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