PDF malware analysis — malicious · cdb9e97e7b34c7ad

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: 0b2af0dafbdabfbe92cd6e479e2e0a90 SHA-1: c1fbbc012b7226243c6e0e0e28996ccd558e1ea1 SHA-256: cdb9e97e7b34c7ad1356aacf5f39ed804dba4f682dbc587356d2eae3ff094635

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of JavaScript suggests an attempt to execute code, likely for delivering a secondary payload or exploiting a PDF reader vulnerability. The document body was unreadable, providing no further context on the lure.

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` `11799bd8373ae1a4bdfebda8c7701512747ff8cf9473ebef7ca6d272b84e983d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74797 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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