PDF malware analysis — malicious · 45ba2258798d6083

MALICIOUS

PDF

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

MD5: 63419066037e3a1912aa42ec8b448844 SHA-1: 10c60724f2df71296aa8d0b0b55c54e8e10a3d7b SHA-256: 45ba2258798d608339e5dbfdc834342193224a12d0fe4a0766d5991cf396b1b6

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Pdf.Dropper.Agent-7256243-0 and Win.Trojan.Agent-36166) confirm its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for dropper malware.

Heuristics 4

ClamAV: Pdf.Dropper.Agent-7256243-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7256243-0
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` `211e310b20b8aee5f8ecd8813c07c5505042086ec7dcca663e88fc084c718d12`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75348 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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