PDF malware analysis — malicious · 3d40fec91bbad463

MALICIOUS

PDF

14.4 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 15291685ee2de2befab2a4f00a4c4bfa SHA-1: 66e5f0a8b12e29a9f1fd8e1b1d4702122b5bfd1c SHA-256: 3d40fec91bbad46394e45e0509c9e200268641173021e57d60db102d15e68c47

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Agent-17766. Additionally, an extracted artifact was also flagged by ClamAV as Win.Trojan.Agent-36166. The presence of PDF JavaScript actions and embedded JS streams indicates that the file is designed to execute malicious code, likely to download and execute a secondary payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-17766 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-17766
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_obj0007_000.js` `1854203789b65c13fa4f531ba8f133f125705187d6bbbd3bad719cffcb810221`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74390 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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