PDF malware analysis — malicious · 8ce4a12893cd7b13

MALICIOUS

PDF

6.1 KB Authoring application: Favib rela (via Pipnolpamok)

MD5: 384a5093603ef3d6ec4e3549c00660f1 SHA-1: d02d5d45447e66079123ea0929a0cf27206a1352 SHA-256: 8ce4a12893cd7b13c020cea592dd69f284351392947ca789bb6e79af9fbea587

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was detected by ClamAV as 'Pdf.Exploit.Agent-36174', indicating it contains known exploit code. The presence of embedded JavaScript, identified by 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, strongly suggests that the script is responsible for the malicious behavior, likely downloading and executing a second-stage payload. The document body was unreadable, so the rationale is based solely on the exploit detection and script presence.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36174 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36174
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_obj0015_000.js` `d2679f3f15d6e025ee8c17fa18b94c5a0f309ff0925fe97138da94e5b5bbdf34`	pdf-javascript-stream	PDF /JS object 15 at offset 0x1281	1504 bytes
Detection ClamAV: Pdf.Exploit.Agent-36174 Obfuscation or payload: unlikely

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