PDF malware analysis — malicious · 22a0f6a50be3068c

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: 808162653b13e4f5b95888a79386a793 SHA-1: caf988f3122eced84f1cf136d1011859f6cf1c95 SHA-256: 22a0f6a50be3068c804d3ee961d6a31a6fea84e1b7eefa8ec2a565c64368feb2

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is a PDF document that contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Win.Trojan.Agent-36166' strongly suggests malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery.

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` `580ea3fa694c759d409b4f517edadb7a604588a1377ab725d47160d2534b16f4`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74408 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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