PDF malware analysis — malicious · 1d253ae976149789

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: 27a0afd12cae5203157d8ed43ca76e79 SHA-1: d2c787b54572598a2abe68c25474432590757c33 SHA-256: 1d253ae976149789d87849508c9b7146160a74e965028f37b361fe7f7b985824

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 (Win.Trojan.Agent-36166) confirm the malicious nature of the file. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as is common with this type of attack. The document body is unreadable, so the rationale is based on the technical findings.

Heuristics 3

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
JavaScript action low 1 related finding 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` `dc4545bb4b5258e1e99cc24da50226b3cfabbc2e150894671be970529237c7e5`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74155 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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