PDF malware analysis — malicious · 4ab31fbe84998863

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: 5b5cea2deedca1a4bdc4f22e09b81d4b SHA-1: b30ebdfed139c95056ec06045a9703eabf59a582 SHA-256: 4ab31fbe84998863e60fed18a838e9da79465d58ec6a786d0ffbce9f4431a5b8

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is a PDF document identified by ClamAV as Win.Trojan.Agent-36166. Static analysis detected embedded JavaScript, which is often used to download and execute further stages of malware. The JavaScript stream is large, suggesting complex functionality. The document body is unreadable, providing no contextual clues about 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` `58f8be914293757d4f77d7ef0d80784b5ce4a5f02ffc23eaaaf929f923f57d72`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75146 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.