PDF malware analysis — malicious · 2607234f849703f9

MALICIOUS

PDF

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

MD5: cdadac1dbbdfe2663432bab8f458471f SHA-1: 226c453e83b06748a7519d357cde68eaf8ae2e9b SHA-256: 2607234f849703f9b0655fda21b3ce7198794527467c4b204f6c35b0bc795ae9

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicating a likely attack pattern of downloading and executing a second-stage payload. The document body was unreadable, but the presence of JavaScript and the ClamAV detection strongly suggest malicious intent.

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` `56fd58c6673eaae50e3baf3c65df726e68e3b35c277684375484d6d6f2dc6f37`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	76159 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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