PDF malware analysis — malicious · f30f1be5dc98a568

MALICIOUS

PDF

13.5 KB Created: 2009-05-27 10:47:06 Authoring application: LCqdvmKXDNyOUFv (via putClfYNcXKTzsBhr)

MD5: 3228c641929bb40475c44a26bda8531a SHA-1: 18cd5b227c0767357d56dd090c353794308e45d2 SHA-256: f30f1be5dc98a568c4c4787b36e29267914515b4dd4e3ebcc457f7fd9ee6cb38

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-35572 and a machine learning classifier indicated a high probability of maliciousness. Embedded JavaScript was detected, and a static triage analysis noted script obfuscation indicators. The embedded JavaScript file, 'javascript_obj0007_000.js', is the primary indicator of malicious activity, likely serving to download and execute a secondary payload.

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
Suspicious extracted artifact medium 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.
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` `c6e164a32294fa2ac120e4381fcb216779a501c48bc3d72cd035c60ea3292503`	pdf-javascript-stream	PDF /JS object 7 at offset 0x427	12085 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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