PDF malware analysis — malicious · e09358ff9cbb812a

MALICIOUS

PDF

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

MD5: f2e6679e5e4d22f794bc9e2a30ef355b SHA-1: 6ba8bebe252de979a8d0d0c1b546afb0411fb578 SHA-256: e09358ff9cbb812a35876f4669cda2d538d8824e56887c93de2ea1d0d5755588

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file was detected as malicious by multiple engines, including ClamAV, which identified it as 'Pdf.Dropper.Agent-7314459-0'. Static analysis revealed embedded JavaScript, a common technique for exploiting PDF vulnerabilities or initiating malicious actions. The presence of 'ML_NYX_PDF_MALICIOUS' and 'EXTRACTED_FILE_CLAMAV' further supports its malicious nature, indicating it likely acts as a dropper for other malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Dropper.Agent-7314459-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7314459-0
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` `8509acc66973e25698de63dea7d712a9901b45e66db595b595f1ddadb70ede09`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	84553 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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