PDF malware analysis — malicious · abfe391ede744c93

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: 66a4a65ca38ec0dae24ce2eb73e21dc3 SHA-1: fd70343eb13d8b9486dd564b378372d87b1f3ef7 SHA-256: abfe391ede744c934a29f9bbe4a5e4675b0e17f2f44cbe1b0c0b49765d1b3a22

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF contains embedded JavaScript, indicated by heuristic firings for PDF_JAVASCRIPT and PDF_JS. ClamAV detection as Win.Trojan.Agent-36166 further confirms its malicious nature. The embedded JavaScript is likely responsible for executing the malicious payload, although its specific actions are not detailed in the provided evidence. The SHA256 hash is included as a primary indicator.

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` `d48cde955442e9a53125aabdf42608008cbbcb5667db4ae3b6eae4763be0dd8b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75080 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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