PDF malware analysis — malicious · ae7b2773a09f2b41

MALICIOUS

PDF

10.1 KB Created: 2010-06-29 15:29:01 Authoring application: IGzzfuOMvGxuQXYFnXH (via OWAVJawSYWMcMYRe)

MD5: fb737db6a340d83007601fb8da2e1305 SHA-1: d5dcbc3210ed848e51acbf937cc91c0f88d3e87b SHA-256: ae7b2773a09f2b41209670d23ecf52eca884d37f3e8a4e641e34e1ef4185e810

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and the presence of an embedded JS stream. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically an exploit targeting PDF vulnerabilities. The embedded JavaScript is the primary mechanism for delivering the malicious payload, likely downloading and executing further stages.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `ba0859529576dc5df63986aef16ff87f1671781583164bbf2a45aa0942e59922`	pdf-javascript-stream	PDF /JS object 7 at offset 0x486	8386 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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