PDF malware analysis — malicious · 4c95f02b4cb719e6

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: 004eadd616100ae5afd97fb93e93b726 SHA-1: 6a849a042aa39e8cfc935a9711060114255b1135 SHA-256: 4c95f02b4cb719e6fe5d3097d333c3c67446940c5e2c21adf824184822696019

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 Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, which is a common technique for delivering secondary payloads. The JavaScript stream, named 'javascript_obj0007_000.js', is the primary indicator of malicious activity, suggesting it is responsible for downloading and executing further malicious code.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
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` `c80dce51a9e035dc2ad2d224c3cb9444c3b388b062a717f67ec7e6bf50006ecc`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74776 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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