PDF malware analysis — malicious · dbe59b22a9b7b8cc

MALICIOUS

PDF

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

MD5: 781586752c574f5f591415c2b34e38f8 SHA-1: 476399b4e00c413c5dc63cd3f55cd76dd3e1b33e SHA-256: dbe59b22a9b7b8cc917248bacb3edc3999f195de54f7cacba80cde9ea0a9ad51

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is a PDF containing embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) on both the main file and an extracted artifact confirm its malicious nature. The embedded JavaScript is likely responsible for executing malicious code or downloading further stages, aligning with common PDF-based attack vectors.

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` `57db741a6638c14b778c252656de02cf7076e9dd72fd06dca4d3b3042d2d7b2a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75141 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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