PDF malware analysis — malicious · bb9b19a9a8ba3578

MALICIOUS

PDF

1.95 MB Created: 2009-04-11 12:18:31 Authoring application: PqhGDXpGiGErbDKCAzOsU (via DHqNNMLIBzCWLpUqhV)

MD5: db97e78fd3087a644f2b5c7a0b66eee7 SHA-1: 6323ada52b05fc4806b58706e82dedeb752e7cde SHA-256: bb9b19a9a8ba3578de4d438d08eb33c34ddd07419175cb7806c76f9026f17084

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-35572. Static analysis detected embedded JavaScript, a common technique for exploiting PDF vulnerabilities. The ML classifier also flagged this PDF with high confidence. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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` `8f7800968ae1032a3dcb7bd610fb903aed7b58fd6defbc4d23bbfebc4038b686`	pdf-javascript-stream	PDF /JS object 7 at offset 0x344	7439 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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