PDF malware analysis — malicious · f5eecbc29170fe76

MALICIOUS

PDF

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

MD5: 16ce5879cf038e6e86b6be04b2fa021b SHA-1: d28ba91fefc719b371e0f12ce3ae598fee72a7d7 SHA-256: f5eecbc29170fe767955757ad89f8584720e0c499d7126eae2f0f7992a135cc7

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The critical ClamAV detection and ML classifier strongly indicate malicious intent. The presence of embedded JavaScript, flagged by heuristics, suggests the PDF is designed to exploit vulnerabilities and execute arbitrary code. The extracted artifact also triggered a ClamAV detection, further confirming its malicious nature. The exact payload and delivery mechanism are unclear due to the obfuscated nature of the JavaScript.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Exploit.Agent-13416 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13416
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` `123e39eb841774b270ad7f3ef8d6fbcaab41c759e7c928636dea916bbb0b7a38`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74487 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.